// amount fwd_pay ret_pay snap_lamport
100 10 20 5
// k6
1 2 3 4 5 6
2 3 4 5 6 1
3 4 5 6 1 2
4 5 6 1 2 3
5 6 1 2 3 4
6 1 2 3 4 5
.
0 0 1
// amount fwd_pay ret_pay snap_lamport
100 10 20 5
// k6
1 2 3 4 5 6
2 3 4 5 6 1
3 4 5 6 1 2
4 5 6 1 2 3
5 6 1 2 3 4
6 1 2 3 4 5
.
0 0 1