#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
int long t,i,p1,p2,c,position=0,max=0;
int a[10002];
scanf("%d\n",&t);
for(i=0;i<t;i++)
{
scanf("%d%d",&p1,p2);
if(p1>p2)
{
c=p1-p2;
a[2*i]=c;
a[2*i+1]=1;
}
if(p2>p1)
{
c=p2-p1;
a[2*i]=c;
a[2*i+1]=2;
}
}
for(i=0;i<2*t;i++)
{
if(a[2*i]>a[2*i+2])
{
max=a[2*i];
position=2*i+1;
}
}
printf("%d%d",max,a[position]);
}
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