Task: Program Execution
Input (English): 2, a, 1, Z, v
Output (English): [['2', 'a', '1', 'Z'], ['2', 'a', '1', 'v'], ['2', 'a', 'Z', 'v'], ['2', '1', 'Z', 'v'], ['a', '1', 'Z', 'v']]