C111113331333132322331333133313331311331322331333132233132233312121   >>    C11111333133313232233133313331333131133132233133313223313223331212   <<    C111113331333132322331333133313331311331322331333132233132233312123   >>      C111113331333132322331333133313331311331322331333132233132233312122   >>