Task: Program Execution
Input (English): 6, ['X', 'K', 'W', '37', '3541', 's', '7757', 'e', 'u', 'M', 'P', 'd', 'C', 's', 'g', 'x', '9509', 'R', 'z', '2503']
Output (English): X, K, W, 37, 3541, s