A = input()
B = input()

def alphacounter(InputString):
    sum = 0

    #アルファベットを数値に直す関数
    alphanum = lambda c: ord(c) - ord('A') + 1

    for i in range(len(InputString)):
        sum += alphanum(InputString[i])

    return sum

if alphacounter(A) == alphacounter(B):
    print("YES")
else:
    print("NO")