Task: Program Execution
Input (English): 10, 14, ['8551', '9605', '5785', '15', 'd', '3305', '6013', 's', '1819', '187', 'F', 'S', 'B', 't', 'G', 't', 'O', '6225', '9717', '1983', 'x']
Output (English): tBSF187