Task: Program Execution
Input (English): 9, i, x, b, 4, t, H
Output (English): [['9', 'i', 'x', 'b', '4', 't'], ['9', 'i', 'x', 'b', '4', 'H'], ['9', 'i', 'x', 'b', 't', 'H'], ['9', 'i', 'x', '4', 't', 'H'], ['9', 'i', 'b', '4', 't', 'H'], ['9', 'x', 'b', '4', 't', 'H'], ['i', 'x', 'b', '4', 't', 'H']]