Task: Program Execution
Input (English): Z, 9, 9, N, 6, u
Output (English): [['Z', '9', '9', 'N', '6'], ['Z', '9', '9', 'N', 'u'], ['Z', '9', '9', '6', 'u'], ['Z', '9', 'N', '6', 'u'], ['Z', '9', 'N', '6', 'u'], ['9', '9', 'N', '6', 'u']]