C212212121212113313221323131323131323132322331323132233131133131232311331   >>    C21221212121211331322132313132313132313232233132313223313113313123231133   <<    C212212121212113313221323131323131323132322331323132233131133131232311333   >>      C212212121212113313221323131323131323132322331323132233131133131232311332   >>