#include <bits/stdc++.h>
int gcd(int a, int b) {
  if (b == 0) return a;
  gcd(b, a % b);
}
using namespace std;
signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int q;
  cin >> q;
  while (q--) {
    int a, b;
    cin >> a >> b;
    if (gcd(a, b) != 1)
      cout << "INFINITE" << endl;
    else
      cout << "FINITE" << endl;
  }
}
