Task: Program Execution
Input (English): 2, x, W, v, W
Output (English): [['2', 'x', 'W', 'v'], ['2', 'x', 'W', 'W'], ['2', 'x', 'v', 'W'], ['2', 'W', 'v', 'W'], ['x', 'W', 'v', 'W']]