C31231211111133131211113313331333133313332233133313132313331323331313213221   >>    C3123121111113313121111331333133313331333223313331313231333132333131321322   <<    C31231211111133131211113313331333133313332233133313132313331323331313213223   >>      C31231211111133131211113313331333133313332233133313132313331323331313213222   >>