There is a batch of 11-meter-long bamboo poles, which need to be cut into 13 bamboo poles with a length of 3 meters and 12 bamboo poles with a length of 5 meters. What is the number of bamboo poles with a length of at least 11 meters?
有一批11米长的竹竿，要截成3米长的竹竿13根，5米长的竹竿12根，至少要用11米长的竹竿根数是多少．
<result>10</result>