Ответ:

A, B, C, D = map(int, input().split())

if A%2 == 0 and B%2 == 0 or C%2 == 0 and A%2 == 0:

   print("Да")

elif B%2 == 0 and C%2 == 0 or D%2 == 0 and B%2 == 0:

   print("Да")

elif C%2 == 0 and D%2 == 0 or A%2 == 0 and C%2 == 0:

   print("Да")

elif D%2 == 0 and A%2 == 0 or B%2 == 0 and D%2 == 0:

   print("Да")

else:

   print("Нет")