#include <bits/stdc++.h>
#include "testlib.h"
using namespace std;
using ll=long long;
const int MIN_T=1;
const int MAX_T=100'000;
const int MIN_V=2;
const int MAX_V=1'000'000'000;
int main(int argc,char** argv){
	registerValidation(argc,argv);
	int T=inf.readInt(MIN_T,MAX_T);
	inf.readEoln();
	for(int i=0;i<T;i++){
		int a=inf.readInt(MIN_V,MAX_V);
		inf.readSpace();
		int b=inf.readInt(MIN_V,MAX_V);
		inf.readEoln();
	}
	inf.readEof();
}