Task: Program Execution
Input (English): w, 4, a, 4, K, v
Output (English): [['w', '4', 'a', '4', 'K'], ['w', '4', 'a', '4', 'v'], ['w', '4', 'a', 'K', 'v'], ['w', '4', '4', 'K', 'v'], ['w', 'a', '4', 'K', 'v'], ['4', 'a', '4', 'K', 'v']]