Introduction - If you have any usage issues, please Google them yourself
Joseph No. 1,2, ...... n n individuals sit in a circle in a clockwise direction, everyone has one and only one password (a positive integer). Optionally a positive integer as the upper limit of the number off, clockwise from the beginning of the first person since 1 reported number, report m to stop reported number. Reported m the man out of the line, his password as the new value of m, starting from the next person in the clockwise direction to re-reported number, and so on, until all the columns until all.