Task: Program Execution
Input (English): Z, 7583, 2557, 4237, u, 6373, q, m, 6963, 8965, 9869, w, r, w, 7967, q, H, 1649, 9979, R, L, 1711
Output (English): 2, 3, 4, 6, 9, 10, 11, 15, 18, 19, 22