def f(x):
    if x==0:
        return 6
    elif x==1:
        return 2
    elif x==2:
        return 5
    elif x==3:
        return 5
    elif x==4:
        return 4
    elif x==5:
        return 5
    elif x==6:
        return 6
    elif x==7:
        return 4
    elif x==8:
        return 7
    elif x==9:
        return 6
    elif x>=10:
        return f(x//10)+f(x%10)
    else:
        return 1+f(-x)

def g(S):
    if S[0]=="-":
        S=S[1:]
        X=1
    else:
        X=0

    for s in S:
        X+=f(int(s))
    return X

P,N=input().split()

if N=="0":
    print(P)
    exit()

N=int(N)

P=g(P)
N-=1

while N:
    N-=1
    P=f(P)
    if 4<=P<=6:
        break

print(P)