#include<iostream> // cin\cout\endl using namespace std; int m,a[10010],minn=10010,maxn=-10010; int main(){ //1.录入m cin>>m; //2.录入m个数，存入数组a中 for(int i=1;i<=m;i++){ cin>>a[i]; if(maxn<a[i]) maxn=a[i]; if(minn>a[i]) minn=a[i]; } cout<<maxn-minn<<endl; return 0; }