Task: Program Execution
Input (English): c, 0, 6, 7, G, j
Output (English): [['c', '0', '6', '7', 'G'], ['c', '0', '6', '7', 'j'], ['c', '0', '6', 'G', 'j'], ['c', '0', '7', 'G', 'j'], ['c', '6', '7', 'G', 'j'], ['0', '6', '7', 'G', 'j']]