Task: Program Execution
Input (English): 7571, 8559, W, f, z, A, B, 6293, a, 4625, 503, B, 3233, H, e, G, 4083
Output (English): W, f, z, A, B, a, B, H, e, G, 7571, 8559, 6293, 4625, 503, 3233, 4083