//由于数组不熟，所以没用数组
#include<iostream>
using namespace std;
int MonthDay(int month)
{
int day=31;
if(month==4||month==6||month==9||month==11)
day=30;
else
if(month==2)
day=28;
return day;
}
int main()
{
int m1=8,d1=1;
cin>>m1>>d1;
int m2=9,d2=5;
cin>>m2>>d2;
int day=d2;
for(int m=m1;m<m2;m++)
day+=MonthDay(m);
day-=d1;
cout<<day<<endl;
return 0;
}

#include <iostream>//c++羸弱代码
using namespace std;
int a[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
int main()
{
    int month,day,zhongjiancha,cha;cin>>month>>day;
    int month1,day1;cin>>month1>>day1;
    int benyuecha=a[month]-day;
    if(month+1==month1)
    {
        cha=a[month]-day;
        cout<<cha+day1;
    }
    if(month==month1)
        cout<<day1-day;
    if(month+1!=month1&&month!=month1)
    {
        for(int i=month+1;i<month1;i++)
            zhongjiancha+=a[i];
        cout<<zhongjiancha+benyuecha+day1;
    }
    return 0;
}

#include <stdio.h>

int main() {
    int day[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    int x1, y1, x2, y2;
    while (scanf("%d%d%d%d", &x1, &y1, &x2, &y2) == 4) {
        if (x1 == x2) {
            printf("%d\n", y2 - y1);
        } else {
            int ans = day[x1] - y1 + y2;
            x1++;
            while (x1 != x2) {
                ans += day[x1];
                x1++;
            }
            printf("%d\n", ans);
        }
    }
    return 0;
}