#include <iostream>
#include <string>
#include <algorithm>
#include <utility>
#include <cmath>
#include <cstdlib>
#include <map>
#include <set>
#include <queue>
#include <vector>
#include "testlib.h"
using namespace std;

int main() {
    long long N = inf.readLong((long long)2, (long long)100000);
    long long M = inf.readLong((long long)2, (long long)1000000000000000000);
    inf.readEoln();
    vector<long long> A(N - 1);
    A[0] = inf.readInt(1, 1000000000);
    for (int i = 1; i < N - 1; i++) {
        inf.readSpace();
        A[i] = inf.readInt(1, 1000000000);
    }
    inf.readEoln();
    inf.readEof();
}