#include <iostream> using namespace std; int main(){ int n,maxn,minn; int a[10001]; cin>> n; for(int i=1;i<=n;i++) cin>>a[i]; maxn = a[1]; minn = a[1]; for(int j=2;j<=n;j++) { if( a[j]>maxn) maxn = a[j]; if( a[j]<minn) minn = a[j]; } cout<< maxn - minn; return 0; } /* Input 5 2 5 7 4 2 Output 5 */