def main():
    a = list(input())
    b = list(input())

    i = 0

    while i < len(a):
        flag = False
        j = 0

        while j < len(b):
            if a[i] == b[j]:
                match_char = a[i]
                flag = True
                break
            else:
                j += 1

        if flag:
            b.remove(match_char)
            a.remove(match_char)
        else:
            i += 1

    if len(b) != 0:
        print("NO")
    if len(b) == 0:
        print("YES")


if __name__ == "__main__":
    main()