C11111333133313232233133313331333133313331312111133133313231121131231   >>    C1111133313331323223313331333133313331333131211113313331323112113123   <<    C11111333133313232233133313331333133313331312111133133313231121131233   >>      C11111333133313232233133313331333133313331312111133133313231121131232   >>