#include <stdio.h>
#include <vector>
#include<fstream>
using namespace std;
#define nmax 100002
#define lmax 18
int rmq[lmax][nmax];
int n,m;
int lg[nmax];
int a[nmax];
int main(){
	ifstream f("rmq.in");
	ofstream g("rmq.out");
	long int i,j,l;
	f>>n>>m;
	for (i=1;i<=n;i++)
		f>>a[i];
	lg[1]=0;
	for (i=2;i<=n;i++)
		lg[i]=lg[i/2]+1;
	for (i=1;i<=n;i++)
		rmq[0][i]=a[i];
	for (i=1; (1 << i) <=n;i++)
		for (j=1;j <= n - (1 << i)+1;j++)
		{
			l=1<<(i-1);
			rmq[i][j]= min( rmq[i-1][j] , rmq[i-1][j+l] );
		}
	int x,y,diff,sh;
	for (i=1;i<=m;i++)
	{
		f>>x>>y;
		
		diff=y-x+1;
		l=lg[diff];
		sh=diff - (1<<l);
		g<<min(rmq[l][x],rmq[l][x+sh]);
	}	
	return 0;
}