Task: Program Execution
Input (English): 1, 4, ['2753', 'z', '6953', '5725', 't', '4831', '5145', '6039', 'o', '4627', 'e', '9139', '4825', 'L', '9071', '585', '8711', '1149', 'W']
Output (English): 2753z69535725