Task: Program Execution
Input (English): a, o, I, 9, 0, c, Y
Output (English): [['a', 'o', 'I', '9', '0', 'c'], ['a', 'o', 'I', '9', '0', 'Y'], ['a', 'o', 'I', '9', 'c', 'Y'], ['a', 'o', 'I', '0', 'c', 'Y'], ['a', 'o', '9', '0', 'c', 'Y'], ['a', 'I', '9', '0', 'c', 'Y'], ['o', 'I', '9', '0', 'c', 'Y']]