#include using namespace std; #ifdef LOCAL #include "settings/debug.cpp" #define _GLIBCXX_DEBUG #else #define Debug(...) void(0) #endif using ll = long long; #define rep(i, n) for (int i = 0; i < (n); ++i) int main() { int n; cin >> n; int ans = 0; for (int tr = 0; tr <= 20; tr++) { for (int co = 0; co <= tr; co++) { for (int pe = 0; pe <= 34; pe++) { if (tr * 5 + co * 2 + pe * 3 == n) ans++; } } } cout << ans << endl; return 0; }