Task: Program Execution
Input (English): 2, 9, R, 2, Y, K, 9
Output (English): [['2', '9', 'R', '2', 'Y', 'K'], ['2', '9', 'R', '2', 'Y', '9'], ['2', '9', 'R', '2', 'K', '9'], ['2', '9', 'R', 'Y', 'K', '9'], ['2', '9', '2', 'Y', 'K', '9'], ['2', 'R', '2', 'Y', 'K', '9'], ['9', 'R', '2', 'Y', 'K', '9']]