#include <fstream>
#include<iostream>
#include <cmath>
//#include <bits/stdc++.h>
#define nmax 100001
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,m2,v[nmax],m[nmax][21];
int main()
{
    f>>n>>m2;
    for(int i=1;i<=n;i++)
        {f>>v[i];m[i][0]=i;}
    for(int j=1;(1<<j)<=n;j++)
        for(int i=1;i+(1<<j)-1<=n;i++)
        if(v[m[i][j-1]]<v[m[i+(1<<(j-1))][j-1]])
        m[i][j]=m[i][j-1];
        else m[i][j]=m[i+(1<<(j-1))][j-1];
    int x,y;
    while(f>>x>>y)
    {
         int k =log2(y-x+1);
         if(v[m[x][k]]<=v[m[y-(1<<k)+1][k]])
            g<<m[x][k]<<'\n';
         else g<<m[y-(1<<k)+1][k]<<'\n';
    }
    return 0;
}