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#! perl -slw use strict; ... 67 42 99 28 15 14 92 12 45 57 16 41 99 67 28 15 57 12 45 14 92 12 92 42 67 28 15 45 57 16 12 99 14
67-41-92 67-41-42 ... 16-12-12 16-12-99 16-12-14