import java.util.*;
import java.text.SimpleDateFormat;
public class Main{
    public static void main(String []args)
    {
        Scanner sc=new Scanner(System.in);
        String date1=sc.nextLine();
        String date2=sc.nextLine();
        int year1=Integer.parseInt(date1.substring(0,4));
        int mon1=Integer.parseInt(date1.substring(4,6));
//20110412
//20110422
//我的輸入格式是這樣的
        SimpleDateFormat df=new SimpleDateFormat("yyyyMMdd");
        try{
        Date d1=df.parse(date1);
        Date d2=df.parse(date2);
        long result=(d2.getTime()-d1.getTime())/1000/60/60/24;
//這個可是說是函式的bug嗎，1000年時它少算一天，自己手動排除啊
        if(year1%4==0&&year1%100==0&&year1%400!=0&&mon1<=2)
                result-=1;
        System.out.println(result+1);
        }catch(Exception e)
        {
            System.out.println(e);
        }
    }
}