#include<iostream>
using namespace std;
bool Year(int year){
    if(year%400==0||(year%4==0&&year%100!=0)){
        return true;
    }
    return false;
}
int month[]={0,31,28,31,30,31,30,31,31,30,31,30,31};
int main(){
    int ans=0;
    for(int year=2000;year<=2024;year++){
        if(Year(year))month[2]=29;
        else month[2]=28;
        for(int i=1;i<=12;i++){
            for(int day=1;day<=month[i];day++){
                ans++;
            }
        }
    }

    cout<<ans;

    return 0;
}