Task: Program Execution
Input (English): 4973, o, 3971, 8031, O, k, 5665, Z, v, 2723, 1505, 7213, E, n, A, T, 1141, 8291, 2903
Output (English): 1, 3, 4, 7, 10, 11, 12, 17, 18, 19