Task: Program Execution
Input (English): 1, I, 6, e, 8, 7, t
Output (English): [['1', 'I', '6', 'e', '8', '7'], ['1', 'I', '6', 'e', '8', 't'], ['1', 'I', '6', 'e', '7', 't'], ['1', 'I', '6', '8', '7', 't'], ['1', 'I', 'e', '8', '7', 't'], ['1', '6', 'e', '8', '7', 't'], ['I', '6', 'e', '8', '7', 't']]