#include <fstream>
#include <iostream>
//#include <cstring>

using namespace std;

ifstream fin("rmq.in");
ofstream fout("rmq.out");
#define NMax 100002
long long i,j,k,m,n,nr,v[10002][10002],x,y;
//char sir1[5000],sir2[5000];

int main()
{
    fin>>n>>m;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n-i+1;j++)
        {
            if(i==1)
                fin>>v[i][j];
            else
                v[i][j]=min(v[i-1][j],v[i-1][j+1]);
        }
    }
    for(i=1;i<=m;i++)
    {
        fin>>x>>y;
        k=y-x+1;
        fout<<v[k][x]<<"\n";
    }
    return 0;
}