#include <fstream>
using namespace std;

ifstream f("stramosi.in");
ofstream g("stramosi.out");

long n,m,i,j,p,nr,q,dp[250005][30];


long stramos(long q,long p)
{
    long P=1,nr=0;
    if (q==0)
        return 0;
    while (P<<1<=p)
    {
        P<<=1;
        nr++;
    }
    if (P==p)
        return dp[q][nr];
    return stramos(dp[q][nr],p-P);
}

int main()
{
    f>>n>>m;
    for (i=1;i<=n;i++)
        f>>dp[i][0];

    p=1;
    while (p<<1<=n)
    {
        p<<=1;
        nr++;
    }

    p=0;

    for (j=1;j<=nr;j++)
        for (i=1;i<=n;i++)
            dp[i][j]=dp[dp[i][j-1]][j-1];

    for (i=1;i<=m;i++)
    {
        f>>q>>p;
        g<<stramos(q,p)<<'\n';
    }
    return 0;
}