#include<fstream.h>
#include<math.h>
#include<stdlib.h>
	ifstream fin("stramosi.in");
	ofstream fout("stramosi.out");

long m,n,i,j,q,p,v[250001];

int main()
{
	fin>>n>>m;
	for(i=1;i<=n;i++)
		fin>>v[i];
	for(i=1;i<=m;i++)
	{
		fin>>q>>p;
		if(q<p) 
		{	
			fout<<0<<"\n";
			continue;
		}
		if(q==p)
		{
			fout<<v[q]<<"\n";
			continue;
		}
		fout<<v[q-p+1]<<"\n";
	}
	fin.close();
	fout.close();
	return 0;
}