Task: Program Execution
Input (English): u, 4, Q, J, 4, 1, 7
Output (English): [['u', '4', 'Q', 'J', '4', '1'], ['u', '4', 'Q', 'J', '4', '7'], ['u', '4', 'Q', 'J', '1', '7'], ['u', '4', 'Q', '4', '1', '7'], ['u', '4', 'J', '4', '1', '7'], ['u', 'Q', 'J', '4', '1', '7'], ['4', 'Q', 'J', '4', '1', '7']]