C1111133313331323223313331333133313113313121111331311331233132313121   >>    C111113331333132322331333133313331311331312111133131133123313231312   <<    C1111133313331323223313331333133313113313121111331311331233132313123   >>      C1111133313331323223313331333133313113313121111331311331233132313122   >>