Task: Program Execution
Input (English): y, h, g, C, 3479, F, A, K, g, G, 9037, 3693, C, 9523, 3583, 7109, 8949, y, X, 8593
Output (English): 1, 2, 3, 4, 6, 7, 8, 9, 10, 13, 18, 19