C11111333133313232233133313331333133313233231331121111331333212331333131111   >>    C1111133313331323223313331333133313331323323133112111133133321233133313111   <<    C11111333133313232233133313331333133313233231331121111331333212331333131113   >>      C11111333133313232233133313331333133313233231331121111331333212331333131112   >>