#include<iostream>
using namespace std;

int num;
int count;
int test = 0;

int main()
{
    cin>> num;
    for (int count = 0; count < num; count++)
        if (count % 4 == 0)
            (test++);
        else
            cout<<"";

    return 0;
}

cout << test;
getch(); // use this so the console won't close automatically
return 0;

int main()
{
    cin>> num;
    cout << num/4;
    getch(); // use this so the console won't close automatically
    return 0;
}

#include<iostream>
using namespace std;

int main()
{
    int num;
    cin>> num;
    cout<< num<<" is divisible by 4 "<< (num>>2) <<" time"<<(num>>2>1?"s":"") <<endl;
    return 0;
}