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Problems

Math
Difficulty
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8523
Circle
8534
Pay for the purchase without change
Medium
8543
Balls (кульки)
Easy
8567
The game "Divisibility"
Medium
8581
Products
Medium
8594
Between A and B
Easy
8595
Dogs and monkeys
Very easy
8597
Field
8649
Emblem (Emblem)
Hard
8650
Crystal (Unknown)
Medium
8654
Integer multiplication
Very easy
8655
A Simple Sum
Medium
8658
Byte on the stairs
Easy
8659
Byte and Chess
8660
Tile
Medium
8661
Credit
Very easy
8663
Multiplication Problem
Easy
8664
Сharity work
Medium
8669
All divisors
Easy
8671
Representable with sum of squares
Very easy
8672
Square root
Very easy
8673
Equation - 1
Easy
8676
Express As The Sum
Easy
8678
Birches
Easy
8683
The sum of products of digits
Very easy
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