C312312111111331312111133133313331322331333133313331322331323133313331323213121   >>    C31231211111133131211113313331333132233133313331333132233132313331333132321312   <<    C312312111111331312111133133313331322331333133313331322331323133313331323213123   >>      C312312111111331312111133133313331322331333133313331322331323133313331323213122   >>