n,k=map(int,input().split());print("YES"if n>2*k-2 else"NO") n,k=map(int,input().split()) n map(int,input().split()) map int input().split() ().split () input split k print("YES"if n>2*k-2 else"NO") print "YES"if n>2*k-2 else"NO" n>2*k-2 n 2*k-2 2*k 2 k 2 "YES" "NO" n,k=map(int,input().split()) map(int,input().split()) n k=map(int,input().split()) map(int,input().split()) k
n,k=map(int,input().split());print("YES"if n>2*k-2 else"NO")