"""



"""

import sys
from sys import stdin

lis = [6,2,5,5,4,5,6,4,7,6]

def f(x):

    if type(x) == type(lis):
        ret = 0
        for i in x:
            if i == "-":
                ret += 1
            else:
                ret += lis[int(i)]
        return ret

    else:
        ret = 0
        if x < 0:
            ret += 1
            x *= -1
        
        while x > 0:
            ret += lis[x % 10]
            x //= 10

        return ret

P,N = stdin.readline().split()

if len(N) >= 1000:
    N = float("inf")
else:
    N = int(N)

if len(P) < 100:
    P = int(P)

while (type(P) != type(lis) and not(4 <= P <= 6)) and N > 0:
    P = f(P)
    N -= 1

print (P)