uva solution relation operator

provlem link:http://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=2113
solution code:
#include<iostream>
#include<stdio.h>
using namespace std;
int main()
{
    int test;
    long long a,b;
    while(scanf("%d",&test)==1)
     {
         while(test-- && scanf("%lld%lld",&a,&b)==2)
          {
              if(a>b) printf(">\n");
              else if(a<b)printf("<\n");
              else printf("=\n");
          }
     }
     return 0;
}