Task: Program Execution
Input (English): 1, ['x', 'B', 'f', 'o', 'r', 'X', '6711', '4571', '7849', 'd', 'l', '9747', 'l']
Output (English): x, B, f, o, r, X, 6711, 4571, 7849, d, l, 9747