#include<iostream>
#include<iomanip>
using namespace std;
int main(void)
{
   double y;
   int a;
   cin>>y;
   if(y>=0)
   {	
   	cout<<int(y);
   }
   else
   {
   	a=int(y);
   	//a++;
   	cout<<a;
   }
   
   return 0;
}