k=input().split()
s,t=map(int,k[0:2])
c=k[2]
if c==">":
  if s>t: print("YES")
  else: print("NO")
elif c=="<": 
  if s<t: print("YES")
  else: print("NO")
elif c=="=": 
  if s==t: print("YES")
  else: print("NO")