#include <iostream>

#include <iostream>
using namespace std;
int main() {
int n;
cin >> n;
int m = n * 100;
int count = 0;
for (int f=1; f<100; f++) {
for (int o = 1; o < 100 - f; o++) {
int h = 100 - f - o;
if (h >= 1&&f* 5 + o* 1 + h*0.5== m) {
count++;
}
}
}

cout << count << endl;
return 0;

}