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Problems

Trees
Difficulty
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4328
Postal Reform
Very easy
4350
Turning Turtles
Very easy
4379
Three Bit Computer
Very hard
4481
In the Country of Unlearned Lessons
Very easy
4482
In the country of Unlearned Lessons 2
Very easy
4483
The kid who learned to count
Very easy
4484
Investigation by koloboks
Very easy
4485
Seven-Colored Flower
Very easy
4486
Cheburashka and Crocodile Gena
Very easy
4487
Winnie-the-Pooh
Easy
4488
Winnie-the-Pooh 2
Easy
4489
Karlsson-on-the-Roof
Very easy
4490
Well, just you wait!
Easy
4491
Three from Prostokvashino
Very easy
4492
Three from Prostokvashino 2
Medium
4493
Three from Prostokvashino 3
Very easy
4494
The Golden Key, or the Adventures of Buratino
Very easy
4495
The Adventures of Leopold the Cat
Medium
4496
Adventures of Dunno and His Friends
Very easy
4497
38 parrots
Easy
4498
The Return of the Wayward Parrot
Medium
4499
The Tale of the Priest and His Worker Balda
Easy
4500
Cipollino
Easy
4835
Without two consecutive ones
Very easy
4969
Roadworks
Easy
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