Task: Program Execution
Input (English): C, c, 9, o, C, P, C
Output (English): [['C', 'c', '9', 'o', 'C', 'P'], ['C', 'c', '9', 'o', 'C', 'C'], ['C', 'c', '9', 'o', 'P', 'C'], ['C', 'c', '9', 'C', 'P', 'C'], ['C', 'c', 'o', 'C', 'P', 'C'], ['C', '9', 'o', 'C', 'P', 'C'], ['c', '9', 'o', 'C', 'P', 'C']]