20 60
(10 1) (10 60)
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6
7 (6 26) (6 27) (6 28) (6 29) (6 30) (6 31) (6 32)
7 (6 25) (6 26) (6 27) (6 28) (6 29) (6 30) (6 31)
7 (6 24) (6 25) (6 26) (6 27) (6 28) (6 29) (6 30)
7 (6 35) (6 36) (6 37) (6 38) (6 39) (6 40) (6 41)
7 (6 34) (6 35) (6 36) (6 37) (6 38) (6 39) (6 40)
7 (6 33) (6 34) (6 35) (6 36) (6 37) (6 38) (6 39)