#include<cstdio>
#include <algorithm>
#include <iostream>
#include<cstring>
#include<cmath>
using namespace std;
const int maxn=100005;
int main()
{
	double a;
	int b;
	scanf("%lf",&a);
	b=(int)a;
	printf("%d\n",b);
//		system("pause");
}