Task: Program Execution
Input (English): W, 1, 7, b, 3, Z
Output (English): [['W', '1', '7', 'b', '3'], ['W', '1', '7', 'b', 'Z'], ['W', '1', '7', '3', 'Z'], ['W', '1', 'b', '3', 'Z'], ['W', '7', 'b', '3', 'Z'], ['1', '7', 'b', '3', 'Z']]