import sys
sys.set_int_max_str_digits(500000)

def f(y):
    a=0
    if y<0:
        y=-y
        a=1

    T=[6,2,5,5,4,5,6,4,7,6]
    for x in str(y):
        a+=T[int(x)]
    return a

def solve():
    P,N=input().split()

    for k in range(N):
        Q=f(P)
        if P==Q:
            return P
        else:
            P=Q
    return P

#==================================================
print(solve())