C312312111133131121333133313113313331333133313331322331323312311   >>    C31231211113313112133313331311331333133313331333132233132331231   <<    C312312111133131121333133313113313331333133313331322331323312313   >>      C312312111133131121333133313113313331333133313331322331323312312   >>