#define _CRT_SECURE_NO_WARNINGS
//#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
//#define int ll
//#define endl "\n"
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int,int> pii;
#define all(c) (c).begin(), (c).end()
#define loop(i,a,b) for(ll i=a; i<ll(b); i++)
#define rep(i,b) loop(i,0,b)
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define mt make_tuple
template<class T> ostream & operator<<(ostream & os, vector<T> const &);
template<int n, class...T> typename enable_if<(n>=sizeof...(T))>::type _ot(ostream &, tuple<T...> const &){}
template<int n, class...T> typename enable_if<(n< sizeof...(T))>::type _ot(ostream & os, tuple<T...> const & t){ os << (n==0?"":" ") << get<n>(t); _ot<n+1>(os, t); }
template<class...T> ostream & operator<<(ostream & os, tuple<T...> const & t){ _ot<0>(os, t); return os; }
template<class T, class U> ostream & operator<<(ostream & os, pair<T,U> const & p){ return os << "(" << p.first << ", " << p.second << ") "; }
template<class T> ostream & operator<<(ostream & os, vector<T> const & v){ rep(i,v.size()) os << v[i] << (i+1==(int)v.size()?"":" "); return os; }
template<class T> inline bool chmax(T & x, T const & y){ return x<y ? x=y,true : false; }
template<class T> inline bool chmin(T & x, T const & y){ return x>y ? x=y,true : false; }
#ifdef DEBUG
#define dump(...) (cerr<<#__VA_ARGS__<<" = "<<mt(__VA_ARGS__)<<" ["<<__LINE__<<"]"<<endl)
#else
#define dump(...)
#endif
// ll const mod = 1000000007;
// ll const inf = 1LL<<60;

vector<int> a {2015,1,1,
2015,1,2,
2015,1,3,
2015,1,4,
2015,1,5,
2015,1,6,
2015,1,7,
2015,1,8,
2015,1,9,
2015,1,10,
2015,1,11,
2015,1,12,
2015,1,13,
2015,1,14,
2015,1,15,
2015,1,16,
2015,1,17,
2015,1,18,
2015,1,19,
2015,1,20,
2015,1,21,
2015,1,22,
2015,1,23,
2015,1,24,
2015,1,25,
2015,1,26,
2015,1,27,
2015,1,28,
2015,1,29,
2015,1,30,
2015,1,31,
2015,2,1,
2015,2,2,
2015,2,3,
2015,2,4,
2015,2,5,
2015,2,6,
2015,2,7,
2015,2,8,
2015,2,9,
2015,2,10,
2015,2,11,
2015,2,12,
2015,2,13,
2015,2,14,
2015,2,15,
2015,2,16,
2015,2,17,
2015,2,18,
2015,2,19,
2015,2,20,
2015,2,21,
2015,2,22,
2015,2,23,
2015,2,24,
2015,2,25,
2015,2,26,
2015,2,27,
2015,2,28,
2015,3,1,
2015,3,2,
2015,3,3,
2015,3,4,
2015,3,5,
2015,3,6,
2015,3,7,
2015,3,8,
2015,3,9,
2015,3,10,
2015,3,11,
2015,3,12,
2015,3,13,
2015,3,14,
2015,3,15,
2015,3,16,
2015,3,17,
2015,3,18,
2015,3,19,
2015,3,20,
2015,3,21,
2015,3,22,
2015,3,23,
2015,3,24,
2015,3,25,
2015,3,26,
2015,3,27,
2015,3,28,
2015,3,29,
2015,3,30,
2015,3,31,
2015,4,1,
2015,4,2,
2015,4,3,
2015,4,4,
2015,4,5,
2015,4,6,
2015,4,7,
2015,4,8,
2015,4,9,
2015,4,10,
2015,4,11,
2015,4,12,
2015,4,13,
2015,4,14,
2015,4,15,
2015,4,16,
2015,4,17,
2015,4,18,
2015,4,19,
2015,4,20,
2015,4,21,
2015,4,22,
2015,4,23,
2015,4,24,
2015,4,25,
2015,4,26,
2015,4,27,
2015,4,28,
2015,4,29,
2015,4,30,
2015,5,1,
2015,5,2,
2015,5,3,
2015,5,4,
2015,5,5,
2015,5,6,
2015,5,7,
2015,5,8,
2015,5,9,
2015,5,10,
2015,5,11,
2015,5,12,
2015,5,13,
2015,5,14,
2015,5,15,
2015,5,16,
2015,5,17,
2015,5,18,
2015,5,19,
2015,5,20,
2015,5,21,
2015,5,22,
2015,5,23,
2015,5,24,
2015,5,25,
2015,5,26,
2015,5,27,
2015,5,28,
2015,5,29,
2015,5,30,
2015,5,31,
2015,6,1,
2015,6,2,
2015,6,3,
2015,6,4,
2015,6,5,
2015,6,6,
2015,6,7,
2015,6,8,
2015,6,9,
2015,6,10,
2015,6,11,
2015,6,12,
2015,6,13,
2015,6,14,
2015,6,15,
2015,6,16,
2015,6,17,
2015,6,18,
2015,6,19,
2015,6,20,
2015,6,21,
2015,6,22,
2015,6,23,
2015,6,24,
2015,6,25,
2015,6,26,
2015,6,27,
2015,6,28,
2015,6,29,
2015,6,30,
2015,7,1,
2015,7,2,
2015,7,3,
2015,7,4,
2015,7,5,
2015,7,6,
2015,7,7,
2015,7,8,
2015,7,9,
2015,7,10,
2015,7,11,
2015,7,12,
2015,7,13,
2015,7,14,
2015,7,15,
2015,7,16,
2015,7,17,
2015,7,18,
2015,7,19,
2015,7,20,
2015,7,21,
2015,7,22,
2015,7,23,
2015,7,24,
2015,7,25,
2015,7,26,
2015,7,27,
2015,7,28,
2015,7,29,
2015,7,30,
2015,7,31,
2015,8,1,
2015,8,2,
2015,8,3,
2015,8,4,
2015,8,5,
2015,8,6,
2015,8,7,
2015,8,8,
2015,8,9,
2015,8,10,
2015,8,11,
2015,8,12,
2015,8,13,
2015,8,14,
2015,8,15,
2015,8,16,
2015,8,17,
2015,8,18,
2015,8,19,
2015,8,20,
2015,8,21,
2015,8,22,
2015,8,23,
2015,8,24,
2015,8,25,
2015,8,26,
2015,8,27,
2015,8,28,
2015,8,29,
2015,8,30,
2015,8,31,
2015,9,1,
2015,9,2,
2015,9,3,
2015,9,4,
2015,9,5,
2015,9,6,
2015,9,7,
2015,9,8,
2015,9,9,
2015,9,10,
2015,9,11,
2015,9,12,
2015,9,13,
2015,9,14,
2015,9,15,
2015,9,16,
2015,9,17,
2015,9,18,
2015,9,19,
2015,9,20,
2015,9,21,
2015,9,22,
2015,9,23,
2015,9,24,
2015,9,25,
2015,9,26,
2015,9,27,
2015,9,28,
2015,9,29,
2015,9,30,
2015,10,1,
2015,10,2,
2015,10,3,
2015,10,4,
2015,10,5,
2015,10,6,
2015,10,7,
2015,10,8,
2015,10,9,
2015,10,10,
2015,10,11,
2015,10,12,
2015,10,13,
2015,10,14,
2015,10,15,
2015,10,16,
2015,10,17,
2015,10,18,
2015,10,19,
2015,10,20,
2015,10,21,
2015,10,22,
2015,10,23,
2015,10,24,
2015,10,25,
2015,10,26,
2015,10,27,
2015,10,28,
2015,10,29,
2015,10,30,
2015,10,31,
2015,11,1,
2015,11,2,
2015,11,3,
2015,11,4,
2015,11,5,
2015,11,6,
2015,11,7,
2015,11,8,
2015,11,9,
2015,11,10,
2015,11,11,
2015,11,12,
2015,11,13,
2015,11,14,
2015,11,15,
2015,11,16,
2015,11,17,
2015,11,18,
2015,11,19,
2015,11,20,
2015,11,21,
2015,11,22,
2015,11,23,
2015,11,24,
2015,11,25,
2015,11,26,
2015,11,27,
2015,11,28,
2015,11,29,
2015,11,30,
2015,12,1,
2015,12,2,
2015,12,3,
2015,12,4,
2015,12,5,
2015,12,6,
2015,12,7,
2015,12,8,
2015,12,9,
2015,12,10,
2015,12,11,
        2015,12,12};

int f(int x){
    int res = 0;
    while(x) res += x%10;
    return res;
}
signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    int ans = 0;
    for(int i=0;i+2<(int)a.size();i+=3){
        int p = a[i+1];
        int q = a[i+2];
        if(f(p)==f(q)) ans++;
    }
    cout << ans << endl;
}