Introduction - If you have any usage issues, please Google them yourself
Problem description: n individuals into a ring, from the beginning, I by 1 to interval number off, report any interval matri, till the annulus. Break the ranks of people according to the order in which they constitute a new sequence. For example, n = 8, I = 2, interval = 3. The output sequence is: 4 7 2 6 3 1 5 8