a = [6, 2, 5, 5, 4, 5, 6, 4, 7, 6]
p, n = map(int, input().split())
if n == 0:
    print(p)
    exit(0)
if p < 0:
    n -= 1
    res = 0
    for c in str(-p):
        res += a[ord(c) - ord('0')]
    p = res + 1
for i in range(min(n, 10000)):
    res = 0
    for c in str(p):
        res += a[ord(c) - ord('0')]
    p = res
print(res)