Just Solve It

n, k = [int(x) for x in input().split()]

if k == 1:
  if n == 1:
    print("YES")
    exit()
  print("NO")
  exit()
  
if n % 2 == 0:
  print("YES")
else:
  if n >= 3: print("YES")
  else: print("NO")

Test 1

Verdict: ACCEPTED

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED