#include<bits/stdc++.h>
#define int long long
using namespace std;
const int inf=1e18;
string s1,s2;
int a,b,c,a1,b1,c1,t1,t2;
int ans,m[20]={0,31,28,31,30,31,30,31,31,30,31,30,31};
bool ly(int y){
    if(y%400==0||(y%4==0&&y%100!=0)) return 1;
    return 0;
}
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0),cout.tie(0);
    cin>>s1>>s2;
    if(s1>s2) swap(s1,s2);
    a=stoll(s1.substr(0,4));
    b=stoll(s1.substr(5,2));
    c=stoll(s1.substr(8,2));
    a1=stoll(s2.substr(0,4));
    b1=stoll(s2.substr(5,2));
    c1=stoll(s2.substr(8,2));
    
    for(int i=a;i<=a1;i++){
        if(ly(i)) ans+=366;
        else ans+=365;
    }

    for(int i=1;i<b;i++){
        t1+=m[i];
        if(ly(a)&&i==2) t1++;
    }
    t1+=c;

    t2+=m[b1]-c1;
    if(ly(a1)&&b1==2) t2++;
    for(int i=b1+1;i<=12;i++){
        t2+=m[i];
        if(ly(a1)&&i==2) t2++;
    }

    ans=ans-t1-t2;

    cout<<ans;
    return 0;
}