#include<cstdio>
#include<cstring>
#define syy myson
using namespace std;
const int maxn=100001;
char name[maxn][20];
int n,m,x,y,now=1,to[maxn],i;
int Main()
{
	freopen("toya.in","r",stdin);freopen("toya.out","w",stdout);
	scanf("%d%d",&n,&m);
	for(i=1;i<=n;i++)scanf("%d%s",&to[i],name[i]);
	for(i=1;i<=m;i++)
	{
		scanf("%d%d",&x,&y);
		if(to[now]!=x)now+=y;
		else now-=y;
		if(now<=0)now+=n;
		if(now>n)now-=n;
	}
	printf("%s\n",name[now]);
	return 0;	
}
int main(){;}
int syy=Main();