Task: Program Execution
Input (English): T, 6, p, 7, C, 7
Output (English): [['T', '6', 'p', '7', 'C'], ['T', '6', 'p', '7', '7'], ['T', '6', 'p', 'C', '7'], ['T', '6', '7', 'C', '7'], ['T', 'p', '7', 'C', '7'], ['6', 'p', '7', 'C', '7']]