import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
sys.setrecursionlimit(10**7)
yes = lambda :print("yes");Yes = lambda :print("Yes")
no = lambda :print("no");No = lambda :print("No")
#######################################################################

S,T,c = input().split()
S=int(S);T=int(T)

if c=="=":
    if S==T:
        print("YES")
    else:
        print("NO")
elif c==">":
    if S>T:
        print("YES")
    else:
        print("NO")
else:
    if S<T:
        print("YES")
    else:
        print("NO")