C111113331333132322331333133313331311331312111111331311221123121121   >>    C11111333133313232233133313331333131133131211111133131122112312112   <<    C111113331333132322331333133313331311331312111111331311221123121123   >>      C111113331333132322331333133313331311331312111111331311221123121122   >>