Task: Program Execution
Input (English): 4, 1, Y, Z, y, 4
Output (English): [['4', '1', 'Y', 'Z', 'y'], ['4', '1', 'Y', 'Z', '4'], ['4', '1', 'Y', 'y', '4'], ['4', '1', 'Z', 'y', '4'], ['4', 'Y', 'Z', 'y', '4'], ['1', 'Y', 'Z', 'y', '4']]