#include <bits/stdc++.h>
using namespace std;
int n,m,lg[100005],rmq[20][100005],a,b,i,j,x;

int main()
{
    ifstream f("rmq.in");
    ofstream g("rmq.out");

    f>>n>>m;
    for(i=0 ; i<n; i++)
        f>>rmq[0][i];

    lg[1]=0;
	for (i=2;i<=n;i++)
		lg[i]=lg[i/2]+1;

    for(i = 1 ; (1<<i) <= n ; i++)
        for(j = 0 ; j + (1 << i) <= n ; j++)
            rmq[i][j]=min(rmq[i-1][j],rmq[i-1][j+(1<<(i-1))]);

    for(i=0 ; i<m; i++)
    {
        f>>a>>b;
        int log=lg[b-a+1];
        x=b-(1<<log);
        a--;
        g<< min(rmq[log][a],rmq[log][x])<<endl;
    }
    return 0;
}