#include<iostream>
#include<iomanip>
#include<cstdio>
#include<deque>
#include<cmath>
#include<cctype>
#include<algorithm>
#include<string>
using namespace std;
struct m {
	string name;
	int num;
};
deque<int>a;
bool cmp1 (int x, int y) {
	return x < y;
}
bool cmp (m x, m y) {
	return x.num > y.num;

}
int b[100005] = { 0 };
int main() {
	double t;
	cin >> t;
	cout << int(floor(t));
	return 0;
}