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

p, n = map(int, input().split())
for _ in range(n):
    if p == f(p):
        print(p)
        exit()
    else:
        p = f(p)

print(p)