Task: Program Execution
Input (English): 7967, 3789, z, 1437, V, 2537, 7541, L, 7085, Y, Z, u, D, v, r, 5727, X, 935, 6803, 9583
Output (English): 3, 5, 8, 10, 11, 12, 13, 14, 15, 17