C11111333133313232233133313331333133313233313233313121121133231   >>    C1111133313331323223313331333133313331323331323331312112113323   <<    C11111333133313232233133313331333133313233313233313121121133233   >>      C11111333133313232233133313331333133313233313233313121121133232   >>