Exercises by difficulty

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No order

Difficulty 0

P07.012-

Difficulty A

P07.001-

P07.008-

P07.009-

P07.010-

P07.011-

P07.013-

P07.014-

P07.015-

P07.016-

P07.017-

P07.018-

P07.019-

P07.002-

P07.003-

Difficulty B

P07.004-

Difficulty C

P07.005-

P07.006-

P07.007-