求助！！！

#include<bits/stdc++.h>
using namespace std;
long long sum1[1000001],sum2[1000001];
long long sum3=1;
struct adj
{
  string x;
  long long y;
}a[2000001];
int main(){
   int n,m;
   cin>>n>>m;
   for(int i=0;i<n;i++){
   	cin>>a[i].y>>a[i].x;
   	a[i+n].y=a[i].y;
   	a[i+n].x=a[i].x;
   }
   
   for(int i=1;i<=m;i++){
   	cin>>sum1[i]>>sum2[i];
   }
   	for (int i=1;i<=m;i++) {
        if(a[sum3].y+sum1[i]==1){
            sum3=(sum3+sum2[i])%n;
        }else{
            sum3=(sum3-sum2[i]+n)%n;
        }
    }
    cout<<a[sum3].x<<endl;
 
   return 0;
}