#include "bits/stdc++.h"
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using namespace std;


char lc = 0x003C;
char rc = 0x003E;

int main() {
  int n;
    scanf("%d", &n);

    ll least = 1;
    int i = 31;
    while (i--) {
        least *= 2;
    }

    while (n--) {
        int a, b;
        scanf("%d %d", &a, &b);

        int c = a - b;

        if (c == 0) {
            cout.put('=');
            cout.put('\n');
        } else if (c & least) {
            cout.put(lc);
            cout.put('\n');
        } else {
            cout.put(rc);
            cout.put('\n');
        }
    }

    cout.flush();
}