Task: Program Execution
Input (English): i, 5589, 7139, x, c, 7939, B, 393, 3131, X, G, 2097, 8041, S, 5927, 8751, o, d, 6691, M, X, 7943, m
Output (English): i, x, c, B, X, G, S, o, d, M, X, m, 5589, 7139, 7939, 393, 3131, 2097, 8041, 5927, 8751, 6691, 7943