Introduction - If you have any usage issues, please Google them yourself
Known n individuals (in numbers 1,2,3 ... n, respectively) sitting around a round table around, everyone has a password. From the number of people began to report the number of k, the number of the person out to m column his newspaper the next person and from a start number, the number to a person' s password on the number of the person and the column and so the law repeated until the round table around all the columns.