print("Year? ")
yr = readline
print("Month? ")
mn = readline
print("Day? ")
dy = readline
birth = Time.local(yr, mn, dy)
printf("Birth Date is %s.\n", birth)
now = Time.now
printf("Today is %s.\n", now)
d = ((now - birth) / (60 * 60 * 24)).floor
printf("You are living for %d days.\n", d)