C31231211111133131211113313331333133313332233132313331313331313331323223121   >>    C3123121111113313121111331333133313331333223313231333131333131333132322312   <<    C31231211111133131211113313331333133313332233132313331313331313331323223123   >>      C31231211111133131211113313331333133313332233132313331313331313331323223122   >>