C31231211111133131211113313331333133313332233133313331123313112122311321   >>    C3123121111113313121111331333133313331333223313331333112331311212231132   <<    C31231211111133131211113313331333133313332233133313331123313112122311323   >>      C31231211111133131211113313331333133313332233133313331123313112122311322   >>