#include <bits/stdc++.h>
using namespace std;
long long gcd(long long a, long long b) {
  while (b) {
    a %= b;
    swap(a, b);
  }
  return a;
}
int main() {
  int t;
  cin >> t;
  while (t--) {
    long long x, y;
    cin >> x >> y;
    if (gcd(x, y) == 1) {
      cout << "FINITE" << endl;
    } else {
      cout << "INFINITE" << endl;
    }
  }
}
