#include<bits/stdc++.h>
using namespace std;
struct zp{
	int x,y,s;
	float b,c;
}a[1000];
bool cmp( zp l, zp j){
	if(l.c<j.c||(l.c==j.c&&l.s<j.s)) return true;
	else{
		return false;
	}
}
int xx,yy;
int n;
int main(){
	cin>>xx>>yy;
	cin>>n;
   int bb=xx*1.0/yy;
	for(int i=1;i<=n;i++){
		cin>>a[i].x>>a[i].y;
		a[i].s=a[i].x*a[i].y;
		a[i].b=a[i].x*1.0/a[i].y;
		a[i].c=abs(a[i].b-bb);
	}
	sort(a+1,a+1+n,cmp);
    cout<<a[1].x<<a[1].y<<endl;
	return 0;
}

/**************************************************************
	Problem: 1346
	User: lidongcheng
	Language: C++
	Result: Wrong Answer
****************************************************************/