Exercises by difficulty

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No order

Difficulty 0

P04.001-

P04.002-

P04.003-

Difficulty A

P04.005-

P04.015-

Difficulty B

P04.004-

P04.006-

P04.007-

P04.008-

P04.009-

P04.010-

P04.013-

P04.016-

P04.017-

P04.018-

Difficulty C

P04.011-

P04.012-

P04.014-