Task: Program Execution
Input (English): 7, e, 7, 6, 3, 8, 7
Output (English): [['7', 'e', '7', '6', '3', '8'], ['7', 'e', '7', '6', '3', '7'], ['7', 'e', '7', '6', '8', '7'], ['7', 'e', '7', '3', '8', '7'], ['7', 'e', '6', '3', '8', '7'], ['7', '7', '6', '3', '8', '7'], ['e', '7', '6', '3', '8', '7']]