//#include "stdafx.h"
#include <iostream>
using namespace std;
int main() {
int n = 0;
cin >> n;
while (n--) {
int sum, leg, d = -2;
cin >> sum >> leg;
int d1 = leg - 4 * sum;
int d2 = 2 * sum - leg;
if (d1 % d == 0 && d2 % d == 0) {//若解为整数
int x = d1 / d;//鸡数量
int y = d2 / d;//兔数量
if (x >= 0 && y >= 0) {
cout << x << " " << y<< endl;
}
else {
cout << "No answer" << endl;
}
}
else {
cout << "No answer" << endl;
}
}
//system("pause");
return 0;
}