C31231211111133131211113313331333133313332233132313331313331313331322331323121   >>    C3123121111113313121111331333133313331333223313231333131333131333132233132312   <<    C31231211111133131211113313331333133313332233132313331313331313331322331323123   >>      C31231211111133131211113313331333133313332233132313331313331313331322331323122   >>