C11112331333132311331333133313331333132313233313233313231311331323132232133221   >>    C1111233133313231133133313331333133313231323331323331323131133132313223213322   <<    C11112331333132311331333133313331333132313233313233313231311331323132232133223   >>      C11112331333132311331333133313331333132313233313233313231311331323132232133222   >>