ID Problem
3904 D4700   Unbalanced Old Maid
3905 D4701   Partial Replacement
3906 D4702   Anton and Lines
3907 D4703   Minimum number of steps
3908 D4704   01 Game
3909 D4705   Years
3910 D4707   Point Ordering
3911 D4708   Compress Words
3912 D4709   Reversing and Concatenating
3913 D4710   Package Delivery
3914 D4711   Array and Operations
3915 D4712   Another Problem About Dividing Numbers
3916 D4713   Bertown Subway
3917 D4714   Gathering Children
3918 D4715   Five Five Everywhere
3919 D4716   Bash's Big Day
3920 D4717   One
3921 D4718   Diameter of a Convex Polygon
3922 D4719   The Doctor Meets Vader (Hard)
3923 D4720   Deputies
3924 D4721   The Tournament
3925 D4722   Match Matching
3926 D4723   Twins
3927 D4724   Igor and his way to work
3928 D4725   Ring road
3929 D4726   Standard Free2play
3930 D4727   Card Bag
3931 D4728   Minlexes
3932 D4729   Almost Same Substring
3933 D4730   Vus the Cossack and a Graph
3934 D4731   Round And Round
3935 D4732   Colorful Tree
3936 D4733   Code obfuscation
3937 D4734   Insertion Sort
3938 D4735   Temperature Difference
3939 D4736   Fuda
3940 D4737   Digits
3941 D4738   Bringing Order to Disorder
3942 D4739   Thanos Nim
3943 D4740   Memory Match
3944 D4741   Platforms
3945 D4742   Pair
3946 D4743   Vus the Cossack and a Field
3947 D4744   Mirror Room
3948 D4745   Noise Level
3949 D4746   Key Storage
3950 D4747   Surf Smelt Fishing Contest II
3951 D4748   Max and Min
3952 D4749   Vicky's Delivery Service
3953 D4750   Hide and Seek
3954 D4751   Is Greedy Optimal?
3955 D4752   Labyrinth
3956 D4753   Recurring Decimals
3957 D4754   Blocked Points
3958 D4755   Petya and Divisors
3959 D4766   Chess Strikes Back (easy version)
3960 D4767   Sasha and a Bit of Relax
3961 D4768   Get Ready for the Battle
3962 D4769   Constructing the Array
3963 D4770   Circle Game
3964 D4771   Empty Rectangles
3965 D4772   Kitsuchiri
3966 D4773   Borya and Hanabi
3967 D4774   Battle
3968 D4775   Thoroughly Bureaucratic Organization
3969 D4776   Cutting
3970 D4777   Yet Another Tetris Problem
3971 D4778   Number into Sequence
3972 D4779   Minimum number of steps
3973 D4780   Fenwick Tree
3974 D4781   Take the 'IOI' train
3975 D4782   Heist
3976 D4783   Bear and Company
3977 D4784   Sleeping Cats
3978 D4785   The hat
3979 D4786   Dima and Friends
3980 D4787   NN and the Optical Illusion
3981 D4788   Snuke the Wizard
3982 D4789   Unambiguous Arithmetic Expression
3983 D4790   Order Book
3984 D4791   Hexagons
3985 D4792   Product Simulation
3986 D4799   Strange Addition
3987 D4800   System Testing
3988 D4801   Harmonious Graph
3989 D4802   Split the Tree
3990 D4803   Cheat and Win
3991 D4804   Cheap Dinner
3992 D4805   Sibling Rivalry
3993 D4807   Number Circle
3994 D4808   Rainbow Triples
3995 D4809   Anatoly and Cockroaches
3996 D4810   Berland Elections
3997 D4811   Reposts
3998 D4812   Permutation Cover
3999 D4813   Shirts
4000 D4814   Valuable Resources
4001 D4815   Clever Fat Rat
4002 D4816   Prefix Flip (Hard Version)
4003 D4817   Homework

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