Kristina Rose | ALEFAST

Kristina Rose

Kristina Rose was born Tracey Quinn Perez on April 14, 1984 in San Diego, California. Rose grew up in Fullerton and San Diego, California. Kristina worked in customer service for an adult website. and after being laid off from that particular job, Rose became an assistant to a photographer who encouraged her to give modeling a try. Kristina eventually began modeling at age 23 and started performing in explicit hardcore porn movies in May, 2007. She won the CAVR Award for Star of the Year in 2009 and a XRCO Award for Superslut in 2011.

Known For: Acting

Born: San Diego, California, USA, 1984-04-14

Died: null

Film

No.	Year	Title	Role	Vote Average
1	2006	Reverse Bukkake 4		0
2	2007	Destination Tonsils 2		0
3	2007	Latin POV 6		0
4	2007	Big Butt Teaze 2		60
5	2007	Plump Rumps #2		70
6	2007	Hot Sauce 5		0
7	2007	The 4 Finger Club 24		0
8	2008	24 hours		0
9	2008	Priceless Fantasies		0
10	2008	POV Cock Suckers 9		0
11	2008	Ass Addiction 3		95
12	2008	Billion Dollar Booties 4		0
13	2008	Ashlynn Goes to College 3		0
14	2008	I Love Lexi		0
15	2008	Cum Swapping Sluts 13		70
16	2008	Suck It Dry 5		0
17	2008	I Love Young Girls 3	(archive footage)	70
18	2008	Jailbait 5		0
19	2008	Swallow This 10		0
20	2008	Getting All A's 2		0
21	2008	An Asian for Every Occasion	(archive footage)	50
22	2008	Shay Jordan: Lust		0
23	2008	Massive Asses 3		0
24	2008	Ass Parade 18		0
25	2008	Alexis Texas Is Buttwoman		66
26	2008	Lesbian Seductions: Older/Younger 20		0
27	2008	Squirt Gangbang 3		0
28	2008	Apple Bottomz 5		0
29	2008	Pound Pussy		0
30	2008	Sporty Girls		0
31	2008	Mouth 2 Mouth 12		0
32	2008	Curvy Girls 2		73
33	2008	What An Ass 7		0
34	2008	Kristina Rose Dirty Girl		0
35	2008	She's Cumming! 2		0
36	2008	Gotcha!		0
37	2008	Ass Titans		0
38	2008	Storm Squirters 6		0
39	2008	Bring Me the Head of Shawna Leneé		70
40	2008	Big Wet Asses 14		0
41	2008	40 Inch Plus 9		0
42	2008	Deceived	Call Girl #2	0
43	2008	Oil Overload 2		100
44	2009	Bitchcraft 7		80
45	2009	Broke Down Bitches 2		0
46	2009	I Love It Rough 4		0
47	2009	Cougar Cruisin'		0
48	2009	Evil Anal 8		0
49	2009	Swimsuit Calendar Girls 2		92
50	2009	This Ain't the Partridge Family XXX	Groupie 1	35
51	2009	Real Female Orgasms 9	(archive footage)	0
52	2009	Watch Me		60
53	2009	Who's Your Daddy? 12		80
54	2009	Performers of the Year 2009		80
55	2009	Head Case 5		80
56	2009	Squirt Facials 2		90
57	2009	Face Fucking, Inc. 5		0
58	2009	Face Invaders 4		80
59	2009	Monsters of Cock 18		90
60	2009	Consumer Affairs 2		0
61	2009	Massive Asses 4		0
62	2009	Sporty Girls 2		0
63	2009	A Shot To The Mouth	(archive footage)	0
64	2009	Pretty Sloppy		0
65	2009	Tight Indian Pussy 3		70
66	2009	Oil Spills		80
67	2009	Bush Mania		0
68	2009	Bitchcraft 6		70
69	2009	Ass Parade 21		80
70	2009	Teenage Spermaholics 6		80
71	2009	It's a Secretary Thing! 2		80
72	2009	Ready Wet Go 6		90
73	2009	Mike's Dirty Movie		0
74	2009	Wet Dreams Cum True 7		70
75	2009	Pure Sextacy 4		0
76	2009	Pornstar Workout		87
77	2009	Don't Make Me Beg		90
78	2009	Load Sharing 2		100
79	2009	Buttman's Stretch Class 2	Herself	70
80	2009	Real Female Orgasms 10	(archive footage)	0
81	2009	Filth Cums First 4		70
82	2009	Intimate Invitation 12		0
83	2009	Swimsuit Calendar Girls 3		88
84	2009	Elastic Assholes 8		0
85	2009	Seinfeld: A XXX Parody	Elaina	65
86	2009	Naughty Nannies		0
87	2009	Face Fucking, Inc. 6		0
88	2009	Anal Academics		100
89	2009	Boundaries 6		70
90	2009	No Swallowing Allowed 16		0
91	2009	Only The Beautiful 4		0
92	2009	Big Butt Oil Orgy		0
93	2009	Jenna Haze: Nymphomaniac		80
94	2009	Monster Curves 5		0
95	2009	Jack's POV 14		78
96	2009	She's the Boss!		0
97	2009	Ass Worship 11		90
98	2009	She The Boss		85
99	2009	King of Coochie 3		0
100	2009	Barely Legal Latinas #2		0
101	2009	Fetish Fucks 4		0
102	2009	Up'r Class 6		60
103	2009	Strap Attack 11		0
104	2009	The Legend of the Magic Taco		0
105	2009	Glamour Girls 2		82
106	2009	Let Me Jerk You		0
107	2009	Ass Cleavage 11		70
108	2009	Rocco Ravishes LA		0
109	2009	Sloppy Head 2		0
110	2009	Tori Black Is Pretty Filthy		93
111	2009	Raw 2		0
112	2009	Pretty Sloppy 2		0
113	2009	No Love Lost		50
114	2009	Stroke It		100
115	2009	Evalutionary		95
116	2009	Kristina Rose is Slutwoman		90
117	2009	All About Me 4		0
118	2009	Chain Gang 2		0
119	2009	Fetish Fuck Dolls 4		0
120	2009	Bree's Anal Invasion		50
121	2009	Barely Legal Bubble Butts		0
122	2009	Couples Seeking Teens 2		80
123	2009	Just Tease	(archive footage)	100
124	2009	Phat Bottom Girls 2		80
125	2009	Hellcats 15		0
126	2009	Diggin in the Gapes 4		0
127	2009	Asstounding		0
128	2010	Official Survivor Parody		70
129	2010	Beat Tha Pussy Up! 2		90
130	2010	Tribade Sorority 3		0
131	2010	Real Female Orgasms 11	(archive footage)	0
132	2010	Private Lessons		72
133	2010	Dream Reel 4		0
134	2010	Lil' Gaping Lesbians		0
135	2010	Performers of the Year 2010		82
136	2010	Strap Attack 12		100
137	2010	Mother and Daughter	Paris Lesbian	70
138	2010	Buttman's Evil Live		0
139	2010	Girls Kissing Girls 4		0
140	2010	The Official Jersey Shore Parody		0
141	2010	Anal Buffet 3		0
142	2010	Nikki's House		0
143	2010	Texass Tales		0
144	2010	Crushing on Kleio		100
145	2010	College Drop Out 1		0
146	2010	Lesbian Truth or Dare 2: Slumber Party		0
147	2010	Sexual Harassment		0
148	2010	Big Bang Theory: A XXX Parody	Neighbor 1	63
149	2010	Young Harlots: School Trip		60
150	2010	Bum Rushed 2		0
151	2010	Racked And Stacked		0
152	2010	The Big Lebowski: A XXX Parody	Gulp War Mediator	80
153	2010	Pornstar Superheroes		53
154	2010	Real Female Orgasms 12	(archive footage)	0
155	2010	Fetish Fanatic 8		0
156	2010	Mean Bitches Erotic Femdom 8		30
157	2010	The Doctor	Nurse Kristina	0
158	2010	Flawless 10	(archive footage)	100
159	2010	Buttwoman vs. Slutwoman	Slutwoman	75
160	2010	Studio 69		60
161	2010	Legends & Starlets 2		0
162	2010	My Boss' Daughter		80
163	2010	Superstars Of XXX		0
164	2010	Deep Throat This 45		60
165	2010	Lesbian Truth or Dare 3		0
166	2010	Massive Facials 2		90
167	2010	The Girls of Red Light District: Kristina Rose	(archive footage)	75
168	2010	Seinfeld 2: A XXX Parody	Elaina	30
169	2010	Rawhide II: Dirty Deeds	Tima	95
170	2010	Fuck Team 5 10		0
171	2010	Lesbian Beauties 6: Latinas		0
172	2010	All-Star Anal Sluts		0
173	2010	Lil' Gaping Lesbians 3		0
174	2010	North Pole 75		0
175	2010	Sexual Blacktivity 2		0
176	2010	Malice in LaLaLand	Red Room Girl 2	64
177	2010	Barely Legal: All Anal		90
178	2010	Beautiful Stranger		0
179	2010	Interracial Cheerleader Orgy 2		0
180	2010	Elexis Unleashed 2		0
181	2010	Gape Lessons		80
182	2010	BatfXXX: Dark Night Parody	Stewardess in Box	80
183	2010	D2: Deviance		82
184	2010	Joanna's Angels 3: Douchebag Resurrection		75
185	2010	Big Wet Butts 3		0
186	2010	The Bombshells		95
187	2010	Load Almighty		0
188	2010	Gapeman 5		0
189	2010	Red Riding Hood XXX: A Triple X Parody	Sluty Red	65
190	2010	Cum Buckets 10	(archive footage)	0
191	2010	Vamp Episode 1: A Fall From Grace		0
192	2010	Superman XXX: A Porn Parody	Secretary	50
193	2010	Ass Stretchers POV 2		87
194	2010	Just Tease 2	(archive footage)	100
195	2010	Suck Balls		0
196	2010	Rear View		0
197	2010	Pretty Sloppy 3		0
198	2010	OMG! Kristina Rose	(archive footage)	75
199	2010	Let Me Suck You		100
200	2010	Malibu Massage Parlor		0
201	2010	Superstar Showdown: Asa Akira Vs. Kristina Rose		0
202	2010	Girl Crush 2		70
203	2010	Barely Legal All Girl Slumber Party 2		100
204	2010	To My Balls!! 4	(archive footage)	0
205	2010	Performers of the Year 2011		78
206	2011	Lex the Impaler 6		100
207	2011	Real Female Orgasms 13	(archive footage)	80
208	2011	Interracial Anal Love 6		0
209	2011	Love Goes Down		0
210	2011	Official Jerry Springer Parody		0
211	2011	Fetish Fanatic 9		0
212	2011	Gloryhole Confessions 5		0
213	2011	Tila Tequila Uncorked!		34
214	2011	Kittens & Cougars 4		0
215	2011	Phat Bottom Girls 4		70
216	2011	Money Shot		0
217	2011	Hard Ass		0
218	2011	Big Butts Like It Big 8		75
219	2011	Anal Delights		0
220	2011	Throat Fucks 3		0
221	2011	Mug Shots	(archive footage)	0
222	2011	Evil Anal 13		0
223	2011	Peter North's POV 29		0
224	2011	Bush		0
225	2011	All Stars 2		0
226	2011	Official Vagina Monologues Parody		0
227	2011	Justice League Of Pornstar Heroes	Zatanna	67
228	2011	All-American Cheerleaders		0
229	2011	25 Sexiest Asses Ever	(archive footage)	90
230	2011	XXX Avengers	Choleta	88
231	2011	Party Girls		60
232	2011	Dirty Panties		0
233	2011	The Facts Of Life: A Porn Parody		30
234	2011	Vamp Episode 2: Sexual Suicide		0
235	2011	The Secretary		0
236	2011	My Sister's Hot Friend 23		0
237	2011	Black in My Ass		70
238	2011	Here Cums the President		0
239	2011	Women Seeking Women 73		0
240	2011	Caught From Behind		0
241	2011	Rico The Destroyer 3		90
242	2011	Official Taxicab Confessions Parody		0
243	2011	Celeste		0
244	2011	The True History Of Face Fucking Inc		0
245	2011	Real Female Orgasms 14	(archive footage)	0
246	2011	Saturday Night Fever XXX	Annette	40
247	2011	Starstruck		65
248	2011	Hard Bodies		100
249	2011	10 Things I Hate About Love		0
250	2011	Pretty In Pink		0
251	2011	Girls Kissing Girls 8		70
252	2011	69 Scenes: Romantic Quickies	(archive footage)	65
253	2011	Kagney Linn Karter is Relentless		97
254	2011	Ass Worship 13		80
255	2011	My Sister's Hot Friend 24		70
256	2011	The Honeymoaners: A XXX Paraody	Alice Kramden	40
257	2011	Belladonna: No Warning 6		0
258	2011	Anal Delights 2		0
259	2011	Seduction		0
260	2011	Manhandled 4		80
261	2011	It's My First Time		80
262	2011	Performers of the Year 2012		85
263	2011	Just Tease 3	(archive footage)	100
264	2011	Nacho vs Franceska Jaimes		0
265	2011	Mandingo Massacre 2		60
266	2012	FemDom Ass Worship 13		0
267	2012	The Brother Load 3		88
268	2012	Fucking Assholes	(archive footage)	0
269	2012	Spare the Rod 3		0
270	2012	Real Female Orgasms 15		100
271	2012	Up Her Asshole 2		100
272	2012	I Love Small Tits 4		0
273	2012	Show Me Your Shit Hole	(archive footage)	0
274	2012	Kristina Rose: Unfiltered		0
275	2012	The True History of Squirting	(archive footage)	87
276	2012	Gapeland		0
277	2012	Big Butts Like It Big 10		70
278	2012	Interracial Gloryhole Initiations 12		80
279	2012	Big Wet Butts 7		0
280	2012	Strap Attack 16		0
281	2012	Tits vs. Ass	(archive footage)	0
282	2012	Intimate Passions		0
283	2012	Latin Adultery 18		58
284	2012	Superstars of Porn 2		0
285	2012	Anal Boot Camp		60
286	2012	Sauna Girls		0
287	2012	Bubble Butt Beauties		0
288	2012	Orgy Masters		100
289	2012	Asscream Milkshakes		70
290	2012	Naughty Office 28		0
291	2012	The Teacher's Pet 4		0
292	2012	Flesh Hunter 11		80
293	2012	Latin All-Stars		0
294	2012	The Ass Party		0
295	2012	Girl Train 2		0
296	2012	Evil Anal 16		0
297	2012	Sex Superstars		0
298	2012	Ass Parade 38		80
299	2012	Evil Angels : Kristina Rose		0
300	2012	Justice League Of Pornstar Heroes: (Animated Cartoon Edition)		100
301	2012	Starlet	Kristina Rose	68
302	2012	Buttface 2		100
303	2012	White Booty Clappin		0
304	2012	Best of POV Cocksuckers	(archive footage)	0
305	2012	Rack City XXX		70
306	2013	Snail Trails		0
307	2013	Cream of the Crop - Wicked 16 Hours	(archive footage)	60
308	2013	Big Butts Like It Big 12		70
309	2013	Cumshot Eruptions	(archive footage)	0
310	2013	Lesbian Adventures: Strap-On Specialists 5		60
311	2013	The True History Of Strap Attack	(archive footage)	0
312	2013	Sucker Play		10
313	2013	Real Wife Stories 15		75
314	2013	Bush Bangers	(archive footage)	70
315	2013	Tonight's Girlfriend 15		0
316	2013	Lesbian Analingus 2		70
317	2013	Cutie Pies 5		0
318	2013	To Live And Fuck In L.A.		0
319	2013	Best Butts In The Biz	(archive footage)	0
320	2013	Threeway Lust 2		0
321	2013	Lesbian Allure		0
322	2013	The Best Of The Beautiful	Archive footage	0
323	2013	Swallowing Is Good For You		0
324	2013	4 in the Pussy	(archive footage)	0
325	2013	Lesbian Beauties 10: Latinas		80
326	2013	Hot and Mean 9		80
327	2013	Tricks and Treats		0
328	2013	All Star Anal Sluts 3		0
329	2013	Lisa Ann's School Of MILF		0
330	2014	Lexi Belle Loves Girls		0
331	2014	Red Hot Lovers 1		0
332	2014	Latinas On Fire 2		0
333	2014	Nacho Vidal Loves Franceska Jaimes		0
334	2014	Strap On Anal Lesbians 2		0
335	2014	Threesome Addiction		80
336	2014	The Load Rangers		0
337	2014	DP Domination	(archive footage)	0
338	2014	Elegant Angels Finest		0
339	2014	Prime Performers		0
340	2014	Epic Workouts	(archive footage)	0
341	2014	Backdoor Baddies		60
342	2014	Awesome Threesomes	(archive footage)	0
343	2014	Bush Bangers 3	(archive footage)	0
344	2014	Lil' Gaping Lesbians 7		80
345	2014	Lesbian Allure 2	(archive footage)	0
346	2015	Ashlynn Brooke's Hottest Girl-Girl Scenes	(archive footage)	0
347	2015	Pretty Sloppy 6		80
348	2015	The True History Of Strap Attack 2		0
349	2015	What If? A Collection of Parodies	Elaina (archive footage)	95
350	2015	Fuck My Throat		0
351	2015	Hot Asses	(archive footage)	0
352	2015	Drop Dead Gorgeous		0
353	2015	Prime Pussy	(archive footage)	0
354	2015	The Hair Down There 2	(archive footage)	0
355	2015	Brunettes Have More Fun		0
356	2015	Elegant Angel Asa Akira		0
357	2015	In-room Rubdown		80
358	2016	Nymphomaniac Confessions	(archive footage)	0
359	2016	Epic Threesomes	(archive footage)	0
360	2016	Latin Asses 2		80
361	2016	Kendra Lust Fucks Couples		0
362	2016	Love & Romance	(archive footage)	0
363	2016	Deep Throat Suckers	(archive footage)	0
364	2016	Brunette Bombshells	(archive footage)	0
365	2016	Hair Supply 3		0
366	2016	Lesbian Fantasy	(archive footage)	0
367	2016	Girls Licking Girls	(archive footage)	0
368	2016	All Threesomes	Kristina Rose	0
369	2016	Abella		90
370	2016	Monster Dick, Little White Bitch		80
371	2016	Gag Reflex 2		70
372	2016	Dirty Romance 2	(archive footage)	0
373	2016	Prime Asses		0
374	2016	Anal Sex Slaves 2		100
375	2016	Fuck My Sister		0
376	2016	Anikka's Anal Sluts 2		80
377	2016	I Blackmailed My Babysitter's Ass		0
378	2016	Craving Anal 2		0
379	2016	Cherry Spot 12		0
380	2016	Pure Bush 4		0
381	2016	Gym Dolls	(archive footage)	0
382	2016	Lex Is up Her Ass 3		80
383	2016	X-Rated 2: The Greatest Adult Stars of All-Time	Self	67
384	2016	Interracial Massage 2		0
385	2016	Lesbian Analingus 10		0
386	2016	Meet Mandingo 2		80
387	2016	DP Obsessions		0
388	2016	Teeny Tits	(archive footage)	80
389	2016	Muffin' Buffin'	(archive footage)	0
390	2016	Platinum Pussy 2		80
391	2016	Intimate Passions		0
392	2017	All bush 2		0
393	2017	Insubordination		0
394	2017	Ultimate Fuckers 3		0
395	2017	A Girlsway Girl Story		0
396	2017	Women Seeking Women 137		0
397	2017	Hair Pies	(archive footage)	70
398	2017	Butt Vs. Slut Vs. Tit Vs. Squirt		25
399	2017	Lesbian Anal Sex Slaves 3		100
400	2017	Tiny Teen Titties		0
401	2017	Girl Kush 2		0
402	2017	Ultra Fine Pornstars	(archive footage)	80
403	2017	Prime Pussy 2	(archive footage)	80
404	2017	Double Black Penetration 4		0
405	2017	It Takes Two To Make A Thing Go Right	(archive footage)	70
406	2017	Top Notch Anal 2		80
407	2017	Blood Sisters	Vigilante	93
408	2017	Craving Anal 2	(archive footage)	0
409	2017	Down My Throat 2		0
410	2017	Lesbian Anal Asses		0
411	2017	Tight & Tiny Teens	(archive footage)	0
412	2017	XXX's Finest Fuckers	(archive footage)	80
413	2017	Anal Pros 2	(archive footage)	0
414	2017	Hot Orgasms 2	(archive footage)	0
415	2017	Superstars 2	(archive footage)	0
416	2017	Juicy Asses 2		0
417	2017	Best Of Buttfucks		0
418	2017	Finest Latin Porn Stars 2		0
419	2017	Hairy XXXmas!	(archive footage)	0
420	2017	The Art of Anal Sex 6		73
421	2017	Orgy Overload		42
422	2017	Teen Fantasy 3	(archive footage)	80
423	2017	She Made Me Cum Twice!	(archive footage)	90
424	2017	Hot Smut	(archive footage)	0
425	2018	Your Dad's Cock Is Huge! 13		0
426	2018	Anal Fuck Fest	(archive footage)	53
427	2018	Brazzers House 2		98
428	2018	Hot Girls With Nice Asses		90
429	2018	Girlsway Crew		73
430	2018	Let Me Blow You 3		0
431	2018	Ultra Fine Pornstars 2	(archive footage)	0
432	2018	Ass Candy 3		0
433	2018	Young Pussy 3	(archive footage)	0
434	2018	Swingers Getaway 3		70
435	2018	Cock Breath	(archive footage)	0
436	2018	Three Bullets To Redemption		70
437	2018	Big Fat Butts 5		0
438	2018	Big Ass Beauties	(archive footage)	90
439	2018	Classic Sex Stars - 4 Hours	(archive footage)	0
440	2018	Best of Buttfucks 2	(archive footage)	0
441	2018	Hooked On Sex 2	(archive footage)	0
442	2018	Hardcore Angels 2	(archive footage)	0
443	2018	Sexual Fantasies 2		90
444	2018	Hot Fuckin Brunettes - 6 Hours	(archive footage)	0
445	2018	Slutty Brunettes 3	(archive footage)	0
446	2018	Anal Pros 3	(archive footage)	0
447	2018	Angela by Darkko		87
448	2018	Lesbian Girlfriends 3		0
449	2018	It Takes Three 3: All Girl Edition	(archive footage)	0
450	2018	Max Orgasms 2	(archive footage)	0
451	2018	Amazing Brunettes 3	(archive footage)	0
452	2019	Anal Lust 4	(archive footage)	0
453	2019	The Art of Gaping	(archive footage)	0
454	2019	Office Love Affair 2	(archive footage)	5
455	2019	Interracial Encounters		0
456	2019	Big Butt Anal Sluts	(archive footage)	0
457	2019	Los Suenos Humedos De Franceska Jaimes		0
458	2019	Anal Lesbians	(archive footage)	0
459	2019	Lesbian Girlfriends 4	(archive footage)	0
460	2019	Interracial Fever 2	(archive footage)	80
461	2019	DP Obsessions 3	(archive footage)	70
462	2019	Put It in My Asshole 4	(archive footage)	60
463	2019	Up Her Ass		0
464	2019	Hot and Mean 19		85
465	2019	Patron of the Tarts: The Story of Mark Spiegler	Self - Spiegler Girl	0
466	2019	Black in White Pussy 3	(archive footage)	70
467	2019	Yes Daddy, I Will Do Whatever You Want	Kristina Rose	0
468	2019	Karl's World 3		60
469	2020	Everybody Loves a Big Ass	(archive footage)	90
470	2020	Face Sitting 2 - It's a Girlfriend's Thing		0
471	2020	Girls Gotta Gape		0
472	2020	Tiny Tit Club	(archive footage)	0
473	2020	Teen Lesbians		60
474	2020	Threesome Addiction 2		90
475	2020	Raw 5	(archive footage)	0
476	2020	Devoted To Booty 6	(archive footage)	0
477	2021	Office Love Affair 3		0
478	2021	Bumfucked Sluts	(archive footage)	90
479	2021	Cum Plastered		15
480	2021	Fixing for a Fuck 7		60
481	2021	A Step Mother and Son's Mistakes		0
482	2022	My Sweet Assfuck Experience		0
483	2022	My Wife's Hot Friend 52		0
484	2022	Babe Runners		80
485	2023	Nothing Better Than Parody 5	(archive footage)	100
486	2023	Have You Had Your MILF Today?		0
487	2023	My Filthy Massage 7		0
488	2023	Lesbian Butt Fucks Forever	(archive footage)	100
489	2023	Batman VS Superman	(archive footage)	0
490	2024	Pop Shots 101 3	(archive footage)	0
491		Cum Competition		0
492		Hot Asses Vol. 5	Kristina Rose	0
493		100 Sexiest Pornstars Ever	Kristina Rose	0
494	2024	Anal Despair		0

Television

No.	Year	Title	Role	Vote Average
1	1984	AVN Awards	Self	55
2	1984	AVN Awards		55
3	2007	The Training of O		0