C11111333133313232233133313331333131133133311331323133313231323331   >>    C1111133313331323223313331333133313113313331133132313331323132333   <<    C11111333133313232233133313331333131133133311331323133313231323333   >>      C11111333133313232233133313331333131133133311331323133313231323332   >>