Task: Program Execution
Input (English): R, 2819, 8947, I, m, F, 4253, 8311, n, A, X, I, 965, M, 671, 843, 4149, a, 987, 8573, 1055, 1609, 9497
Output (English): R, I, m, F, n, A, X, I, M, a