/*
validation
*/

#include <bits/stdc++.h>

#include "testlib.h"

using ll = long long;

const ll MIN_N = 2, MAX_N = 200'000;
const ll MIN_K = 1;
const ll MIN_A = 1, MAX_A = 1'000'000'000;

int main() {
    registerValidation();
    ll n = inf.readLong(MIN_N + 1, MAX_N);
    inf.readSpace();
    inf.readLong(MIN_K, n-1);
    inf.readEoln();
    for(int i = 0; i < n; i++) {
        inf.readLong(MIN_A, MAX_A);
        if(i < n-1) inf.readSpace();
        else inf.readEoln();
    }
    inf.readEof();
    return 0;
}