C11111333133313232233133313331333133313331312111133133313223313331333133323131   >>    C1111133313331323223313331333133313331333131211113313331322331333133313332313   <<    C11111333133313232233133313331333133313331312111133133313223313331333133323133   >>      C11111333133313232233133313331333133313331312111133133313223313331333133323132   >>