The case of 10 persons on 36 occasions is solved as follows:--

1 10 8 3 6 5 4 7 2 9

1 10 6 5 2 9 7 4 3 8

1 10 2 9 3 8 6 5 7 4

1 10 7 4 8 3 2 9 5 6

The repeater is 1, and the cycle, 2, 3, 4, 5, 6, 7, 8, 9, 10. We here

have 4 groups of 9 lines each.