Task: Program Execution
Input (English): 1, 2, ['3739', '7755', '2991', '1343', 'f', '6119', '9109', 't', '2251', 'B', '3293', 'f', 'M', '1289']
Output (English): 3739, 2991, f, 9109, 2251, 3293, M