#include<iostream> #include<cstdio> //scanf()\printf() #include<cstring> #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a[10001],m,max=0,min=10000; cin>>m; for(int i=1;i<=m;i++){ cin>>a[i]; if(a[i]>max){ max=a[i]; } else if(a[i]<min){ min=a[i]; } } cout<<max-min; return 0; }