Task: Program Execution
Input (English): z, R, 0, 6, 7, 3
Output (English): [['z', 'R', '0', '6', '7'], ['z', 'R', '0', '6', '3'], ['z', 'R', '0', '7', '3'], ['z', 'R', '6', '7', '3'], ['z', '0', '6', '7', '3'], ['R', '0', '6', '7', '3']]