#include <fstream>

using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n,i,m,r[17][100010],b[100010],L,R,p,q;
int main()
{
    f>>n>>m;
    for(i=1;i<=n;i++)
        f>>r[0][i];
    for(i=1,p=1,q=2;q<=n;i++,p<<=1,q<<=1)
        for(L=1,R=q;R<=n;L++,R++)
            r[i][L]=min(r[i-1][L],r[i-1][L+p]);
    for(q=2;q<=n;q<<=1)
        b[q]=1;
    for(i=1;i<=n;i++)
        b[i]+=b[i-1];
    for(;m;m--)
    {
        f>>L>>R;
        p=b[R-L+1];
        q=1<<p;
        g<<min(r[p][L],r[p][R-q+1])<<"\n";
    }
    return 0;
}