#include<stdio.h>
#define N (++m1>12?(++y1,m1-=12):0)
int U(int y)
{
	if(y%100==0)return y%400==0;
	return y%4==0;
}
int main()
{
	int D[2][13]={0,31,28,31,30,31,30,31,31,30,31,30,31},y1,y2,m1,m2,d1,d2,i,r;
	for(i=0;i<13;++i)D[1][i]=D[0][i];++D[1][2];
	while(scanf("%d%d%d%d%d%d",&y1,&m1,&d1,&y2,&m2,&d2),d1>0)
	{
		if(y1==y2&&m1==m2)r=d2-d1;
		else for(r=D[U(y1)][m1]-d1+d2,N;y1<y2||m1<m2;N)
			r+=D[U(y1)][m1];
		printf("%d\n",r);
	}
	return 0;
}