S,T,c = input().split()  #3個の文字列の入力を受け取る

YoN = "No"

if c == "<" :
    if  int(S) < int(T):
     YoN = "Yes"

elif c == ">" :
    if int(S) > int(T):
        YoN = "Yes"

elif c == "=" :
    if int(S) == int(T):
        YoN = "Yes"

print(YoN)