Task: Program Execution
Input (English): 1253, M, 9807, a, 3305, 1517, 1815, K, 7637, L, D, z, 7191, S, z, 7043, 975, 5273, o, V, b, 2037, i, 2823
Output (English): 2, 4, 8, 10, 11, 12, 14, 15, 19, 20, 21, 23