Task: Program Execution
Input (English): 8, 9, f, Y, 1, C, 9
Output (English): [['8', '9', 'f', 'Y', '1', 'C'], ['8', '9', 'f', 'Y', '1', '9'], ['8', '9', 'f', 'Y', 'C', '9'], ['8', '9', 'f', '1', 'C', '9'], ['8', '9', 'Y', '1', 'C', '9'], ['8', 'f', 'Y', '1', 'C', '9'], ['9', 'f', 'Y', '1', 'C', '9']]