#include <fstream>
using namespace std;
ifstream f("ssm.in");
ofstream g("ssm.out");
int n,i,inc,v[100000],sum,sumx=INT_MIN,af1,af2;
int main()
{
    f>>n;
    for(i=0; i<n; ++i)
        f>>v[i];
    for(i=0; i<n; ++i)
    {
        if(sum<0)
            sum=v[i],inc=i;
        else
            sum+=v[i];
        if(sum>sumx)
            sumx=sum,af1=inc,af2=i;
    }
    g<<af1+1<<' ' <<af2+1;
}