C11111333133313232233133313331333133313231322321111331323333322231   >>    C1111133313331323223313331333133313331323132232111133132333332223   <<    C11111333133313232233133313331333133313231322321111331323333322233   >>      C11111333133313232233133313331333133313231322321111331323333322232   >>