Task: Program Execution
Input (English): v, 0, h, y, U
Output (English): [['v', '0', 'h', 'y'], ['v', '0', 'h', 'U'], ['v', '0', 'y', 'U'], ['v', 'h', 'y', 'U'], ['0', 'h', 'y', 'U']]