Task: Program Execution
Input (English): 9589, 3097, 2911, U, G, 2313, 4849, n, y, 6747, 9911, L, 2683, 2431, r, 8183, 6627, i, J, 955, A, 6701, 3479
Output (English): 4, 5, 8, 9, 12, 15, 18, 19, 21