Task: Program Execution
Input (English): 3, a, c, o, I
Output (English): [['3', 'a', 'c', 'o'], ['3', 'a', 'c', 'I'], ['3', 'a', 'o', 'I'], ['3', 'c', 'o', 'I'], ['a', 'c', 'o', 'I']]