#include <fstream>

using namespace std;
long long i,n,a,b,maxi,l,u,p,nr,v[100001],s,j;
ifstream fin("ssm.in");
ofstream fout("ssm.out");
int main()
{
    fin>>n;
    for(i=1;i<=n;++i)
        fin>>v[i];
    for(i=1;i<=n;++i)
    {
        s=0;
        for(j=i;j<=n;++j)
        {
            s+=v[j];
            if(s>maxi){maxi=s; p=i; u=j;}
            else if(s<0){s=v[j];i=j; break;}
        }
    }
    fout<<p<<' '<<u;
	return 0;
}