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Problems
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Problems

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Difficulty
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1598
Food Collecting
Very easy
1603
The sum of digits
Very easy
1604
The product of even digits in a number
Very easy
1605
Second digit of the number
Very easy
1606
The sum of the first and the last digits in the number
Very easy
1607
The number in reverse order
Very easy
1608
The number-palindrome
Very easy
1609
The number of specified digits
1611
Reverse a substring
Very easy
1622
Honey barrels
Very easy
1624
Day after tomorrow
Easy
1625
Judging Olympia
Easy
1627
Rotating Rings
1628
A Tale from the Dark Side of the Moon
Easy
1632
The Writers' Club
Easy
1633
Moving Sticks
Very hard
1634
Johnny Hates Math
Easy
1644
Joke
Medium
1647
Reset bits
Easy
1650
Decoding Task
Very easy
1674
Air conditioner
1675
Square Digital Root
Easy
1677
Snake
Easy
1678
Gifts
Easy
1689
Durak game
Very easy
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