#include <bits/stdc++.h>
using namespace std;
int n,p,s[500010],c=1e9,ans;
int main() {
    cin>>n;
    for(int i=1;i<=n;i++){
    	cin>>p;
    	s[i]=s[i-1]+p;
	}
	for(int i=1;i<=n;i++){
		if(abs(s[n]-s[i]-s[i])<=c){
			ans=i;
			c=s[n]-s[i-1]-s[i];
		}
	}
	cout<<ans<<" "<<ans+1;
    return 0;
}