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

const ll Nmin = 2, Nmax = 200'000;
const ll Kmin = 1, Kmax = 200'000;

int main(){
    registerValidation();
    ll N = inf.readLong(Nmin, Nmax);
    inf.readSpace();
    ll K = inf.readLong(Kmin, Kmax);
    inf.readEoln();

    inf.readEof();
    return 0;
}