Task: Program Execution
Input (English): 1, X, b, Q, 3, q
Output (English): [['1', 'X', 'b', 'Q', '3'], ['1', 'X', 'b', 'Q', 'q'], ['1', 'X', 'b', '3', 'q'], ['1', 'X', 'Q', '3', 'q'], ['1', 'b', 'Q', '3', 'q'], ['X', 'b', 'Q', '3', 'q']]