#include<iostream>

using namespace std;

int big_small(int y1,int m1,int d1,int y2,int m2,int d2){ /*-1 hidari 1 migi 0 onazi*/
	if(y1>y2) return -1;
	else if(y1<y2) return 1;
	else if(m1>m2) return -1;
	else if(m1<m2) return 1;
	else if(d1>d2) return -1;
	else if(d1<d2) return 1;
	return 0;
}

bool uruu(int y){
	if(y%400==0) return true;
	else if(y%100==0) return false;
	else if(y%4==0) return true;
	return false;
}

int get_day(int y,int m){
	if(m==1) return 31;
	else if(m==2){
		if(uruu(y)) return 29;
		return 28;
	}
	else if(m==3) return 31;
	else if(m==4) return 30;
	else if(m==5) return 31;
	else if(m==6) return 30;
	else if(m==7) return 31;
	else if(m==8) return 31;
	else if(m==9) return 30;
	else if(m==10) return 31;
	else if(m==11) return 30;
	else if(m==12) return 31;
	return -1;
}

int main(){

	int y1,m1,d1,y2,m2,d2;
	int c;

	while(1){

		cin>>y1>>m1>>d1>>y2>>m2>>d2;

		if(y1<0||m1<0||d1<0||y2<0||m2<0||d2<0) break;

		c=0;

		while(1){
			int tmpy=y1+1,tmpm=m1,tmpd=d1;
			if(big_small(tmpy,tmpm,tmpd,y2,m2,d2)==-1) break;
			if(m1>=3){
				if(uruu(y1+1)) c+=366;
				else c+=365;
			}
			else{
				if(uruu(y1)) c+=366;
				else c+=365;
			}
			y1=tmpy,m1=tmpm,d1=tmpd;
		}


		while(1){
			int tmpy=y1,tmpm=m1+1,tmpd=d1;
			if(tmpm==13) tmpy++,tmpm=1;
			if(big_small(tmpy,tmpm,tmpd,y2,m2,d2)==-1) break;
			c+=get_day(y1,m1);
			y1=tmpy,m1=tmpm,d1=tmpd;
		}

		while(1){
			int tmpy=y1,tmpm=m1,tmpd=d1+1;
			if(tmpd>get_day(y1,m1)) tmpm++,tmpd=1;
			if(tmpm==13) tmpy++,tmpm=1;
			if(big_small(tmpy,tmpm,tmpd,y2,m2,d2)==-1) break;
			c++;
			y1=tmpy,m1=tmpm,d1=tmpd;
		}

		cout<<c<<endl;
	}
}