#include <bits/stdc++.h>
#define INF 2147483647
#define INF_LL 9223372036854775807
#define MOD 1000000007
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;

random_device rnd;
mt19937 mt(rnd());
int main() {
	uniform_int_distribution<> rand100(-100, 100);
	int N;
	cin >> N;
	cout << N + rand100(mt) << endl;
	return 0;
}