#include <fstream>
using namespace std;
int n,i,m,aux,j,k,l,maxim,p,maximi,maximj;
int v[6000002];
long long s[6000002];
ifstream cin("ssm.in");
ofstream cout("ssm.out");
int main () {
    cin>>n;
    for (i=1;i<=n;i++) {
        cin>>v[i];
        s[i]=s[i-1]+v[i];
    }
    j=1;
    for (i=2;i<=n;i++) {
        if (s[i]-s[j-1]>maxim) {
            maxim=s[i]-s[j-1];
            maximi=i;
            maximj=j;
        }
         if(s[i]-s[j-1]<0){
            j=i+1;
        }
    }
    cout<<maxim<<" "<<maximj<<" "<<maximi;
}