Task: Program Execution
Input (English): 4, i, x, 8, R
Output (English): [['4', 'i', 'x', '8'], ['4', 'i', 'x', 'R'], ['4', 'i', '8', 'R'], ['4', 'x', '8', 'R'], ['i', 'x', '8', 'R']]