#include <iostream>
using namespace std;
int  i,j,m,a,jf,mf,af,maz;
int main()
{
cout<<"donne un date premier"<<endl;
    cin>>j>>m>>a;
cout<<"donne un date final"<<endl;
cin>>jf>>mf>>af;
if(m==1||m==3||m==5||m==7||m==8||m==10||m==12){
    maz=31;
    }else if(m==4||m==6||m==9||m==11){
        maz=30;
        }else if (m=2){
            if (a%4==0){
                maz=29;

            }
            else
            maz=28;
        }

    i=-1;
    while (j<=jf&& m<=mf&& a<=af){
    j=j+1;
    if (j>maz){
        m=m+1;
        j=1;
    }
    if (m>12){
        a=a+1;
        m=1;
        j=1;
    }
    i=i+1;
}
    cout<<i;
}