#include "bits/stdc++.h"
using namespace std;
typedef long long ll;


void solve(){
    int N; scanf("%d",&N);
    for(int i = 0; i != N;i++){
        int a,b;
        scanf("%d%d",&a,&b);
        if(a==b){
            printf("=\n"); continue;
        }
        string sa = to_string(a), sb = to_string(b);
        int digit = 10;
        while(sa.length()!=digit){
            sa.insert(sa.begin(), '0');
        }
        while(sb.length()!=digit){
            sb.insert(sb.begin(), '0');
        }
        for(int j = 0; j !=digit;j++){
            if(sa[j] == '0' && sb[j] == '0'){ continue; }
            if(sa[j] != '0' && sb[j] == '0'){
                printf("%c\n",(char)(62));
                break;
            }
            if(sa[j] == '0' && sb[j] != '0'){
                printf("%c\n",(char)(60));
                break;
            }
            if(sa[j] !='0' && sb[j] != '0'){
                int ta = sa[j] - '0';
                int tb = sb[j] - '0';
                
                int tta = ta;
                while(tta != tb && (tta != digit)){
                    tta++;
                }
                if(tta == digit){
                    printf("%c\n",(char)(62));
                }else{
                    printf("%c\n",(char)(60));
                }
                break;
            }
        }
    }
}
int main(void) {
    cin.tie(0); ios::sync_with_stdio(false);
    solve();
    return 0;
}