Task: Program Execution
Input (English): M, e, t, 2, p, 7
Output (English): [['M', 'e', 't', '2', 'p'], ['M', 'e', 't', '2', '7'], ['M', 'e', 't', 'p', '7'], ['M', 'e', '2', 'p', '7'], ['M', 't', '2', 'p', '7'], ['e', 't', '2', 'p', '7']]