Runtime error on 321B

Revision en1, by OneStone, 2015-09-22 22:22:19

At the end of the contest, my submission for this problem gave me a runtime error on case 19. This program solved larger cases of this problem but apparently not this one. Does anyone know why this happened? Here is the submission

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en1 English OneStone 2015-09-22 22:22:19 309 Initial revision (published)