#include #define be(v) (v).begin(),(v).end() #define pb(q) push_back(q) typedef long long ll; using namespace std; const ll mod=1000000007, INF=(1LL<<60); #define doublecout(a) cout<> n; ll 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 + 2 * j + k * 3 == n)ans++; } } } cout << ans << endl; return 0; }