Task: Program Execution
Input (English): 6771, y, 3871, 4687, V, 803, p, y, V, 1983, 3881, M, 3305, 2823, 2739, X, U, G, 9603, J, j, 5977, 5785
Output (English): 1, 3, 4, 6, 10, 11, 13, 14, 15, 19, 22, 23