#include<iostream>
using namespace std;
int main(){
    long long double a,b,c,d;
    int x;
    while(cin>>x){
                  for(int i=1;i<=x;i++){
                          cin>>a>>b>>c>>d;
                          if(b!=d)
                          cout<<"No\n";
                          else if(b==d){
                               if(a>c)
                               cout<<">\n";
                               else if(a<c)
                               cout<<"<\n";
                               else if(a==c)
                               cout<<"=\n";}}}}

這樣哪裡錯了

一直錯在最後一個資測