x1 = int(input())
y1 = int(input())
x2 = int(input())
y2 = int(input())
if y1 < y2:
if y2 in range(2, 10, 2):
if x2 in range(2, 10, 2):
print("YES")
else:
print("NO")
if y2 in range(3, 9, 2):
if x2 in range(1, 9, 2):
print("YES")
else:
print("NO")
else:
print("NO")