Task: Program Execution
Input (English): 4307, 2685, 8755, 8637, 3691, M, U, 9223, i, 2127, j, M, r, I, X, 9785, x, r, z, N, 4541, 5023
Output (English): M, U, i, j, M, r, I, X, x, r, z, N