Hannah and her friends are stuck on an island that is in the middle of a lake. They have a sailboat with a maximum weight capacity of 220 pounds. The friends weigh the following: Hannah: 120 pounds, Samir: 100 pounds, Esteban: 95 pounds, Charice: 110 pounds, and Lewei: 140 pounds. What is the least number of trips it will take to get Hannah and her friends off the island? [Assume each trip is one-way, and there must be at least one passenger in the boat to make a trip]