Task: Program Execution
Input (English): l, o, 5, K, C, h, s
Output (English): [['l', 'o', '5', 'K', 'C', 'h'], ['l', 'o', '5', 'K', 'C', 's'], ['l', 'o', '5', 'K', 'h', 's'], ['l', 'o', '5', 'C', 'h', 's'], ['l', 'o', 'K', 'C', 'h', 's'], ['l', '5', 'K', 'C', 'h', 's'], ['o', '5', 'K', 'C', 'h', 's']]