Task: Program Execution
Input (English): 5417, V, 7501, 1417, k, d, 4001, 4605, 4829, 827, 4163, 6743, c, y, e, u, 8003, 9843, o, 1977
Output (English): 1, 3, 4, 7, 8, 9, 10, 11, 12, 17, 18, 20