#line 2 "library/other/template.hpp" #define _CRT_SECURE_NO_WARNINGS #pragma target("avx2") #pragma optimize("O3") #pragma optimize("unroll-loops") #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define rep(i,n) for(int i=0;i<(n);i++) #define REP(i,n) for(int i=1;i<=(n);i++) #define all(V) V.begin(),V.end() typedef unsigned int uint; typedef long long lint; typedef unsigned long long ulint; typedef std::pair P; typedef std::pair LP; constexpr int INF = INT_MAX/2; constexpr lint LINF = LLONG_MAX/2; constexpr double eps = DBL_EPSILON; constexpr double PI=3.141592653589793238462643383279; template class prique :public std::priority_queue, std::greater> {}; template inline bool chmax(T& lhs, const U& rhs) { if (lhs < rhs) { lhs = rhs; return 1; } return 0; } template inline bool chmin(T& lhs, const U& rhs) { if (lhs > rhs) { lhs = rhs; return 1; } return 0; } inline lint gcd(lint a, lint b) { while (b) { lint c = a; a = b; b = c % b; } return a; } inline lint lcm(lint a, lint b) { return a / gcd(a, b) * b; } bool isprime(lint n) { if (n == 1)return false; for (int i = 2; i * i <= n; i++) { if (n % i == 0)return false; } return true; } template T mypow(T a, lint b) { T res(1); while(b){ if(b&1)res*=a; a*=a; b>>=1; } return res; } lint modpow(lint a, lint b, lint m) { lint res(1); while(b){ if(b&1){ res*=a;res%=m; } a*=a;a%=m; b>>=1; } return res; } template void printArray(std::vector& vec) { rep(i, vec.size()){ std::cout << vec[i]; std::cout<<(i==(int)vec.size()-1?"\n":" "); } } template void printArray(T l, T r) { T rprev = std::prev(r); for (T i = l; i != rprev; i++) { std::cout << *i << " "; } std::cout << *rprev << std::endl; } LP extGcd(lint a,lint b) { if(b==0)return {1,0}; LP s=extGcd(b,a%b); std::swap(s.first,s.second); s.second-=a/b*s.first; return s; } LP ChineseRem(const lint& b1,const lint& m1,const lint& b2,const lint& m2) { lint p=extGcd(m1,m2).first; lint tmp=(b2-b1)*p%m2; lint r=(b1+m1*tmp+m1*m2)%(m1*m2); return std::make_pair(r,m1*m2); } template inline constexpr decltype(auto) lambda_fix(F&& f){ return [f=std::forward(f)](auto&&... args){ return f(f,std::forward(args)...); }; } #line 2 "main.cpp" int main(){ int N; std::cin>>N; int ans=0; rep(i,30){ rep(j,i+1){ rep(k,60){ if(i*5+j*2+k*3==N)ans++; } } } std::cout<