Task: Program Execution
Input (English): 2715, l, 7605, 9967, 285, D, K, Z, 6613, 9063, r, J, K, r, 4299, 8343, 9137, I, q, P, 7933
Output (English): 1, 3, 4, 5, 9, 10, 15, 16, 17, 21