p = 19 q = 23 x that is a gap [752, 752] Length: 1 [762, 763] Length: 2 [771, 771] Length: 1 [775, 775] Length: 1 [780, 786] Length: 7 [790, 790] Length: 1 [793, 794] Length: 2 [798, 809] Length: 12 [812, 813] Length: 2 [816, 832] Length: 17