#include <bits/stdc++.h> using namespace std; int main() { long long n,a[1005]; cin>>n; for(int i = 0;i<n;i++) { cin>>a[i]; } long long Min = 999999999999,Mini,Minj; for(int i = 0;i<n;i++) { for(int j = i+1;j<n;j++) { int temp = max(a[i],a[j])-min(a[i],a[j]); if(temp<Min)//abs(a[i]-a[j]) { Min = temp; Mini = i; Minj = j; } } } cout<<Mini+1<<' '<<Minj+1; return 0; }