a=int(input())
b=int(input())
i=a
w=0
while i<=b:
    w=w+1
    i=i+2
if (a%10==0):
    w=w-1
print(w)

first = int(input())
second = int(input())

count = 0
for i in range(first, second + (second % 2 != 0), 2):
    count += 1

print(count)