Task: Program Execution
Input (English): 9851, 4799, F, x, D, 7659, K, z, e, E, 3229, 9167, 3379, 8523, 5837, v, Q, 4905, 3005, 3793, 2867, G
Output (English): 1, 2, 6, 11, 12, 13, 14, 15, 18, 19, 20, 21