Task: Program Execution
Input (English): 2, 7, 1, I, Z, t
Output (English): [['2', '7', '1', 'I', 'Z'], ['2', '7', '1', 'I', 't'], ['2', '7', '1', 'Z', 't'], ['2', '7', 'I', 'Z', 't'], ['2', '1', 'I', 'Z', 't'], ['7', '1', 'I', 'Z', 't']]