#include<bits/stdc++.h> using namespace std; int main() { int b,k; float a,n; cin>>n; for(int i = 1;i<=100;i++) { for(int j = 1;j<=100;j++) { k = 100 - i - j; a = i * 5 + j * 1 + k * 0.5; if(a == n && i + j + k == 100) { b++; } } } cout<<b; }