#include"bits/stdc++.h"
using namespace std;
typedef long long int ll;
typedef long double ld;
int main(){
  int Q;scanf("%d",&Q);
  while(Q--){
    int A,B;scanf("%d %d",&A,&B);
    if(A==B){printf("=\n");continue;}
    char a='0'+12,b='0'+14;
    string S=to_string(A-B);
    if(S[0]!='-')printf("%c\n",b);
    else printf("%c\n",a);
  }
  return 0;
}