#include <iostream>
#include <cmath>
#include <algorithm>
using namespace std;
int main() {
long long n , r;
long long a[100];
   int iMin=1000, firstN = 0, secondN=0;
long long im = 0 , ipm =0;
cin >> n;
for (int i = 0; i < n; i++)
  cin >> a[i];
long long m = a[0];
long long am = a[0];
  for(int i = 0; i < n;i++){
      ipm= i ;
        for(int j = i+1; j < n;j++){
            im = j ;
            if(std::abs(a[i]-a[j]) < iMin){
                iMin=std::abs(a[i]-a[j]);
                firstN = a[i];
                secondN = a[j];

            }
        }
  }
    std::cout  << firstN << "   " << secondN<< "   " << im<<  "   "<< ipm;
}