Task: Program Execution
Input (English): 15, 21, ['2999', 'B', 'J', 'I', 'E', '3641', 'V', '4573', 'U', '7351', '7363', '5975', 'R', 'q', '4647', '3461', 'w', 'b', '3817', '9345', '3601']
Output (English): 4647, 3461, w, b, 3817, 9345, 3601