Task: Program Execution
Input (English): G, 2, T, 9, 5, 9
Output (English): [['G', '2', 'T', '9', '5'], ['G', '2', 'T', '9', '9'], ['G', '2', 'T', '5', '9'], ['G', '2', '9', '5', '9'], ['G', 'T', '9', '5', '9'], ['2', 'T', '9', '5', '9']]