Task: Program Execution
Input (English): I, 9, J, c, U, 7, z
Output (English): [['I', '9', 'J', 'c', 'U', '7'], ['I', '9', 'J', 'c', 'U', 'z'], ['I', '9', 'J', 'c', '7', 'z'], ['I', '9', 'J', 'U', '7', 'z'], ['I', '9', 'c', 'U', '7', 'z'], ['I', 'J', 'c', 'U', '7', 'z'], ['9', 'J', 'c', 'U', '7', 'z']]