#include <stdio.h>
using namespace std;

int mat[20][250069];
int n,m;

int main()
{
    FILE *in,*out;
    in=fopen("stramos.in","r");
    out=fopen("stramos.out","w");
    fscanf(in,"%d%d",&n,&m);

    for(int i=1;i<=n;i++);
        //fscanf(in,"%d",&mat[0][i]);


    for(int i=1;i<=n;i++)
        for(int put=1;put<=17;put++);
            //mat[put][i]=mat[put-1][mat[put-1][i]];

    int a, b, niv;
    for(int i=1;i<=m;i++){
        fscanf(in,"%d %d",&a,&b);
        niv=0;
        while(b){
            //if(b&1) a=mat[niv][a];
            niv++;
            b=b>>1;
        }
        fprintf(out,"%d\n",a);
    }

    fclose(in);
    fclose(out);

    return 0;
}