#!/usr/bin/env python



ta, tb, tc = list(map(int, input().split()))

k = int(eval(input()))



def dfs(s):

    a = ta

    b = tb

    c = tc

    if len(s) == k:

        #print(s)

        for i in range(k):

            if 'A' == s[i]:

                a *= 2

            elif 'B' == s[i]:

                b *= 2

            elif 'C' == s[i]:

                c *= 2

        if c > b > a:

            print('Yes')

            exit(0)

        return

    dfs(s+'A')

    dfs(s+'B')

    dfs(s+'C')



dfs('')



print('No')

#!/usr/bin/env python



a, b, c = list(map(int, input().split()))

k = int(eval(input()))



t = 0 

while a>=b:

    b *= 2

    t += 1

while b>=c:

    c *= 2

    t += 1



if t<=k:

    print('Yes')

else:

    print('No')

#!/usr/bin/env python
ta, tb, tc = list(map(int, input().split()))
k = int(eval(input()))


def dfs(s):
    a = ta
    b = tb
    c = tc
    if len(s) == k:
        # print(s)
        for i in range(k):
            if "A" == s[i]:
                a *= 2
            elif "B" == s[i]:
                b *= 2
            elif "C" == s[i]:
                c *= 2
        if c > b > a:
            print("Yes")
            exit(0)
        return
    dfs(s + "A")
    dfs(s + "B")
    dfs(s + "C")


dfs("")
print("No")

#!/usr/bin/env python
a, b, c = list(map(int, input().split()))
k = int(eval(input()))
t = 0
while a >= b:
    b *= 2
    t += 1
while b >= c:
    c *= 2
    t += 1
if t <= k:
    print("Yes")
else:
    print("No")

-ta, tb, tc = list(map(int, input().split())) +a, b, c = list(map(int, input().split())) - - -def dfs(s): -    a = ta -    b = tb -    c = tc -    if len(s) == k: -        # print(s) -        for i in range(k): -            if "A" == s[i]: -                a *= 2 -            elif "B" == s[i]: -                b *= 2 -            elif "C" == s[i]: -                c *= 2 -        if c > b > a: -            print("Yes") -            exit(0) -        return -    dfs(s + "A") -    dfs(s + "B") -    dfs(s + "C") - - -dfs("") -print("No") +t = 0 +while a >= b: +    b *= 2 +    t += 1 +while b >= c: +    c *= 2 +    t += 1 +if t <= k: +    print("Yes") +else: +    print("No")