#include <iostream>
#include <cmath>

using namespace std;

int main()
{
int n;
    cin>>n;
    float niz[n];
    for(int i=0;i<n;i++)
    {
        cin>>niz[i];
    }
    float nb=niz[0],nbp=0,nd=niz[0],ndp=0;
    for(int i=0;i<n;i++)
    {
        if(abs(0-niz[i])<abs(0-nb))
        {
            nb=niz[i];
            nbp=i;
        }
        if(abs(0-niz[i])>abs(0-nd))
        {
            nd=niz[i];
            ndp=i;
        }
    }
    cout<<nb<<" "<<nbp<<endl;
    cout<<nd<<" "<<ndp<<endl;
    return 0;
}