Task: Program Execution
Input (English): K, M, I, 4, V, D, R
Output (English): [['K', 'M', 'I', '4', 'V', 'D'], ['K', 'M', 'I', '4', 'V', 'R'], ['K', 'M', 'I', '4', 'D', 'R'], ['K', 'M', 'I', 'V', 'D', 'R'], ['K', 'M', '4', 'V', 'D', 'R'], ['K', 'I', '4', 'V', 'D', 'R'], ['M', 'I', '4', 'V', 'D', 'R']]