>S1
1, 5, S
>T1
6, 9, T
>S2
10, 14, S
>T2
15, 19, T
>S3
20, 26, S
>T3
27, 33, T
>S4
34, 39, S
>T4
40, 49, T
>S5
50, 55, S
>T5
56, 60, T