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<response><unit><id>2e0139ec-0b41-4de6-bee8-4e03c4a42536</id><parent_id>0b2271d5-b543-48ce-ab78-5f3a677c03f4</parent_id><number>4.18.5</number><names>[{"lang":"es","name":"Operaciones y límites entre sucesiones"},{"lang":"en","name":"Operations and limits with sequences"},{"lang":"ca","name":"Operacions i límits entre successions"}]</names><difficulty>8</difficulty><created>7/18/16, 11:43 AM</created><modified>7/18/16, 11:43 AM</modified></unit></response>
