#include #define rep(a,n) for (ll a = 0; a < (n); ++a) using namespace std; //using namespace atcoder; using ll = long long; typedef pair P; typedef pair PP; typedef vector > Graph; template inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } const ll INF = 1e18; int main(){ int n; cin >> n; int ans = 0; for(int i=0;i<=100;i++){ for(int j=0;j<=i;j++){ for(int k=0;k<=100;k++){ if(i*5+j*2+k*3==n)ans++; } } } cout << ans << endl; return 0; }