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1279
Kind of a Blur
1304
What is the Median?
Very easy
1315
A + B
Very easy
1330
Tobo or not Tobo
Easy
1331
Adding Sevens
1332
Match Maker
Very easy
1334
Relax! It’s just a game
Very easy
1337
Musical Chairs
Very easy
1338
I Speak Whales
Hard
1339
A Day at the Races
Very easy
1345
Sports day for idlers
Very easy
1348
Covering
Easy
1351
The highest digits
Very easy
1354
The number of integers Mersenns
Very easy
1357
Zeros at the end of
1363
Rectangles and nails
Very easy
1364
Magic square
Easy
1382
Selling Cells
Medium
1384
Abstract Extract
Very easy
1386
Spy Cam
Easy
1394
Calculator
Hard
1401
Proof Generator
Very hard
1402
Shares
1410
Рыжие псы
Very easy
1411
Вассал моего вассала – не мой вассал!
Very easy
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