Task: Program Execution
Input (English): 3543 6239 3229 6791 x 537 X I 4233 D 1157 9039 8037 g 1021 W 6389 K Z 4607 o x b 9165 3321 5261 3289 9035 L
Output (English): x, X, I, D, g, W, K, Z, o, x, b, L, 3543, 6239, 3229, 6791, 537, 4233, 1157, 9039, 8037, 1021, 6389, 4607, 9165, 3321, 5261, 3289, 9035