#include #define rep(i,n) for(int i=0;i=0;i--) #define FOR(i,m,n) for(int i=m;i inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } //const ll INF = 1LL << 60; //const int INF = 1001001001; bool ishappy(int x,int y){ int sum=0; while(y>0){ sum+=(y%10); y/=10; } if(x==sum) return true; else return false; } int main(void){ int y[12]={31,28,31,30,31,30,31,31,30,31,30,31}; int ans=0; for(int i=1;i<=12;i++){ for(int j=1;j<=y[i-1];j++){ if(ishappy(i, j))ans++; } } cout << ans << endl; return 0; }