C312312111133131121333133313113313331333133313331323223313133111   >>    C31231211113313112133313331311331333133313331333132322331313311   <<    C312312111133131121333133313113313331333133313331323223313133113   >>      C312312111133131121333133313113313331333133313331323223313133112   >>