a, b = map(int, input().split())
M = int( (a - 1) / 2) + 1
if M >= b:
    ans = 'YES'
else:
    ans = 'NO'
print(ans) a, b = map(int, input().split()) a map(int, input().split()) map int input().split() ().split () input split b M = int( (a - 1) / 2) + 1 M int( (a - 1) / 2) + 1 int( (a - 1) / 2) int (a - 1) / 2 a - 1 a 1 2 1 if M >= b:
    ans = 'YES'
else:
    ans = 'NO' M >= b M b ans = 'YES' ans 'YES' ans = 'NO' ans 'NO' print(ans) print ans b = map(int, input().split()) map(int, input().split()) b a, b = map(int, input().split()) map(int, input().split()) a M = int( (a - 1) / 2) + 1 int( (a - 1) / 2) + 1 M ans = 'NO' 'NO' ans ans = 'YES' 'YES' ans
a, b = map(int, input().split())
M = int( (a - 1) / 2) + 1
if M >= b:
    ans = 'YES'
else:
    ans = 'NO'
print(ans)