#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <vector>
#include <cmath>

using namespace std;

#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define FORN(i, a, b) for (int i = (a); i < (b); i++)
#define REP(i, n) for (int i = 0; i < (n); i++)
#define FORD(i, a, b) for (int i = (a); i >= (b); i--)
#define BUG(x) cerr << #x << " = " << x << endl

#define SIZE(a) ((int) a.size())

typedef pair<int, int> pii;

long long sq(long long x) {
  return x * x;
}

long long mySqrt(long long x) {
  long long res = sqrt(x);

  while (sq(res) >= x) {
    res--;
  }

  return res;
}

int main() {
  int q;
  cin >> q;
  while (q--) {
    long long r, k;
    cin >> r >> k;

    bool ok = false;
    for (long long a = 1; a < r; a++) {
      long long b = mySqrt(a*(2*r - a));

      //trick to void overflow
      if (r > 20000 || 10000 * (sq(r - a) + sq(b)) > sq(100 * r - k)) {
        cout << r - a << " " << b << endl;
        ok = true;
        break;
      }
    }
    if (!ok) {
      cout << -1 << endl;
    }
  }
  return 0;
}