#include <stdio.h>
FILE *fin, *fout;
long n, m, x, y, s;
bool r;
long power[21] = {1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576};
int min(int a, int b)
{
    return (a > b)?b:a;
}
int log(int a)
{
    for(int i =0;;i++)
    {
            if(power[i]> a) return i-1;
    }
}
int main()
{
    fin = fopen("rmq.in", "r");
    fout = fopen("rmq.out", "w");
    fscanf(fin, "%ld %ld", &n, &m);
    long int arr[log(n)][n];
    s = n;
    for(int i =0; i<= log(n);r = 1, s-=power[i], i++)
    {
            for(int j = 0; j< s; j++)
            {
                    if(r == 0)
                    {
                         fscanf(fin, "%ld", &arr[i][j]);
                    }
                    else arr[i][j] = min(arr[i-1][j], arr[i-1][j+power[i-1]]);
            }
    }
    for(int i =0; i< m; i++)
    {
            fscanf(fin, "%ld%ld", &x, &y);
            fprintf(fout, "%ld\n", min(arr[log(y-x)][x-1], arr[log(y-x)][y - power[log(y-x)]]));
    }
    return 0;
}