#include<bits/stdc++.h>
using namespace std;
const int N=100001;
int n,a[N],fl[N],fr[N],ans=INT_MAX;
int main(){
cin>>n;
for(int i=1;i<=n;++i) cin>>a[i];
fl[1]=a[1];
for(int i=2;i<=n;++i) fl[i]=a[i]+fl[i-1];//前缀和
fr[n]=a[n];
for(int i=n-1;i>=1;--i) fr[i]=a[i]+fr[i+1];//后缀和
for(int c=1;c<=n-1;++c) ans=min(ans,abs(fl[c]-fr[c+1]));
cout<<ans;
return 0;
}