Task: Program Execution
Input (English): X, 6, 3, p, 4, 8
Output (English): [['X', '6', '3', 'p', '4'], ['X', '6', '3', 'p', '8'], ['X', '6', '3', '4', '8'], ['X', '6', 'p', '4', '8'], ['X', '3', 'p', '4', '8'], ['6', '3', 'p', '4', '8']]