Task: Program Execution
Input (English): Z, K, 7, 9, A, F
Output (English): [['Z', 'K', '7', '9', 'A'], ['Z', 'K', '7', '9', 'F'], ['Z', 'K', '7', 'A', 'F'], ['Z', 'K', '9', 'A', 'F'], ['Z', '7', '9', 'A', 'F'], ['K', '7', '9', 'A', 'F']]