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