#include "testlib.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

const int min_n = -1'000'000'000;
const int max_n = 1'000'000'000;

int main(){
    registerValidation();
    inf.readInt(min_n, max_n);
    inf.readSpace();
    inf.readInt(min_n, max_n);
    inf.readEoln();
    inf.readEof();
}