#include <iostream>
#include <cstdio>
using namespace std;
pair<int, string>arr[10000];
int main() {
	int n,m;
	cin >> n >> m;
	int ans = 0;
	int a, s;
	for (int i = 0; i < n; i++) {
		cin >> arr[i].first >> arr[i].second;
	}
	while (m--) {
		cin >> a >> s;
		switch (arr[ans].first ^ a) {
		case 0:ans = (ans -s + n) % n;
			break;
		case 1:
			ans = (ans + s + n) % n;
			break;
		}
	}
    if(ans>=0)
    {
        cout << arr[ans].second;
    }
    return 0;
}