C312312111133131121333133313113313331333133313331333133313331323133313223311331   >>    C31231211113313112133313331311331333133313331333133313331333132313331322331133   <<    C312312111133131121333133313113313331333133313331333133313331323133313223311333   >>      C312312111133131121333133313113313331333133313331333133313331323133313223311332   >>