A total of 60 players from Hope Primary School went to the school. There are two kinds of cruise ships in the park, one is limited to 5 people, and the other is limited to 4 people. Now please contact the park to book a cruise. How many different options are there? (Each boat must be full)
希望小学共有60名队员去．公园里的游船有两种，一种限乘5人，一种限乘4人．现在请你去与公园联系预定游船，有多少种不同的方案？(每条船必须坐满)
<result>4</result>