/*
This program reads two dates and prints the number of days between them.
Each date is three integers in European order: year, month, day.
Try typing
   2001 10 27
   2002 1 1
to ask for the number of days between 27 October 2001 and 1 January 2002.

MJD stands for Modified Julian Date.
It increases by 1 every day.
It's a standard unit in astronomy.

This program does not use struct.
It's here for comparison with struct2.c.
*/

#include <stdio.h>

int mjd(int dateyear,int datemonth,int dateday)
{
  int y = dateyear;
  int m = datemonth - 1;
  int d = dateday - 678882;

  d += 146097 * (y / 400);
  y %= 400;

  if (m >= 2) m -= 2; else { m += 10; --y; }

  y += (m / 12);
  m %= 12;
  if (m < 0) { m += 12; --y; }

  d += (306 * m + 5) / 10;

  d += 146097 * (y / 400);
  y %= 400;
  if (y < 0) { y += 400; d -= 146097; }

  d += (y & 3) * 365;
  y >>= 2;

  d += 1461 * (y % 25);
  y /= 25;

  d += (y & 3) * 36524;

  return d;
}

int main(void)
{
  int date1year;
  int date1month;
  int date1day;
  int date2year;
  int date2month;
  int date2day;

  scanf("%d%d%d",&date1year,&date1month,&date1day);
  scanf("%d%d%d",&date2year,&date2month,&date2day);

  printf("There are %d days between %d-%02d-%02d and %d-%02d-%02d.\n"
    ,mjd(date2year,date2month,date2day) - mjd(date1year,date1month,date1day)
    ,date1year,date1month,date1day
    ,date2year,date2month,date2day
    );
  return 0;
}