data1 = input().split("/")
data2 = input().split("/")
listaData = [int(x) for x in data1]
listaData2 = [int(z) for z in data2]
dia1,mes1,ano1 = listaData
dia2,mes2,ano2 = listaData2
bissexto=0
if ano1==ano2:
	if ano1%4==0 and ano1%100!=0 or ano1%400==0:
			bissexto+=1
	else:
		for x in range(ano1,ano2):
			if x%4 == 0 and x%100!=0 or x%400 == 0:
				bissexto+=1
if mes1>2:
	bissexto-=1
if ano1==ano2 and mes1<=2 and mes2>=2:
		if ano1%4==0 and ano1%100!=0 and ano1%400==0:
			bissexto+=1
def diferenca():
	mesB,mesN = [31,29,31,30,31,30,31,31,30,31,30,31],[31,28,31,30,31,30,31,31,30,31,30,31]
	if bissexto>0:
		return sum(mesB[:mes1-1])
	else:
		return sum(mesN[:mes1-1])
def d2():
	mesB,mesN = [31,29,31,30,31,30,31,31,30,31,30,31],[31,28,31,30,31,30,31,31,30,31,30,31]
	if bissexto>0:
		return sum(mesB[:mes2-1])
	else:
		return sum(mesN[:mes2-1])
def somaFinal():
	fim = ano1*365+diferenca()+dia1
	fim2 = ano2*365+d2()+dia2
	if bissexto>0:
		calculoFinal = fim2-fim+bissexto
	else:
		calculoFinal = fim2-fim
	print(calculoFinal)
d2()
diferenca()
somaFinal()