#include using namespace std; typedef long long ll; typedef pair P; #define DUMP(x) cout << #x << " = " << (x) << endl; #define FOR(i, m, n) for (ll i = m; i < n; i++) #define IFOR(i, m, n) for (ll i = n - 1; i >= m; i--) #define REP(i, n) FOR(i, 0, n) #define IREP(i, n) IFOR(i, 0, n) #define FOREACH(x, a) for (auto&(x) : (a)) #define ALL(v) (v).begin(), (v).end() #define SZ(x) ll(x.size()) int main() { ll n; cin >> n; ll ans = 0; REP(i, n + 1) REP(j, n + 1) REP(k, n + 1) { if (i >= j && 5 * i + 2 * j + 3 * k == n) { ans++; } } cout << ans << endl; }