#include <bits/stdc++.h>
using namespace std;
ifstream f("rmq.in");
ofstream g("rmq.out");
int n, m;
int rmq[33][33], lg[1000002];
int main() {
    f >> n >> m;
    for(int i = 1; i <= n; i++)
        f >> rmq[0][i];

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

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

    for (int i = 1; i <= m; i++)
    {
        int x, y;
        f >> x >> y;
        int dif = y - x + 1;
        int l = lg[dif];
        int s = dif - (1 << l);
        g << min(rmq[l][x], rmq[l][x + s]) << '\n';
    }
    return 0;
}