Task: Program Execution
Input (English): i, H, 871, J, 5609, Q, l, n, 1093, y, r, Q, N, s, e, U, Z, 4449, 9687, 3073, N, Y
Output (English): 1, 2, 4, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 21, 22