#include using namespace std; typedef long long ll; typedef long double ld; typedef pair Pii; typedef pair Pil; typedef pair Pll; typedef pair Pli; typedef vector> Mat; #define fi first #define se second const ll MOD = 1e9 + 7; const ll MOD2 = 998244353; const ll MOD3 = 1812447359; const ll INF = 1ll << 62; const double PI = 2 * asin(1); void yes() { printf("yes\n"); } void no() { printf("no\n"); } void Yes() { printf("Yes\n"); } void No() { printf("No\n"); } void YES() { printf("YES\n"); } void NO() { printf("NO\n"); } int a[4], sum; const int coins[4] = {1000, 100, 25, 1}; int main() { for (int i = 1; i <= 3; i++) { cin >> a[i]; sum += coins[i] * a[i]; } int ans = (sum % 1000) / 100 + (sum % 100) / 25 + sum % 25; cout << ans << endl; return 0; }