#include"testlib.h"

using ll = long long;
const ll Qmin = 1;
const ll Qmax = 200'000;
const ll Lmin = 1;
const ll Rmax = 1'000'000;

int main(){
    registerValidation();
    ll Q = inf.readLong(Qmin, Qmax);
    inf.readEoln();
    for (ll i = 1; i <= Q; i++){
        ll L = inf.readLong(Lmin, Rmax);
        inf.readSpace();
        ll R = inf.readLong(L, Rmax);
        inf.readEoln();
    }
    inf.readEof();
}