C11111333133313232233133313331333131133131211113313223331233131   >>    C1111133313331323223313331333133313113313121111331322333123313   <<    C11111333133313232233133313331333131133131211113313223331233133   >>      C11111333133313232233133313331333131133131211113313223331233132   >>