#include #include #define chmin(x,y) (x) = min((x),(y)) #define chmax(x,y) (x) = max((x),(y)) #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define vec vector #define all(a) a.begin(), a.end() #define rall(a) a.rbegin(), a.rend() #define pb push_back #define eb emplace_back using namespace std; using namespace atcoder; using ll = long long; using ld = long double; const ll mod = 998244353; using mint = modint998244353; const vector dx = {1,0,-1,0}, dy = {0,1,0,-1}; // using Graph = vector>>; using Graph = vector>; int main(){ // input int N; cin >> N; // solve int ans = 0; while(N >= 100){ ans++; N -= 500; } // output cout << ans << endl; }