def f(x):
    val = 0
    for s in str(x):
        val += int(s)
    return val

T = list(input())
D = int(input())
cnt, s = 0, 0
for t in T:
    if t == "?":
        cnt += 1
    else:
        s += int(t)

for _ in range(10**4):
    s = f(s)

if D == 0:
    if s == 0:
        print(1)
    else:
        print(0)
    exit()

mod = 10 ** 9 + 7
ans = pow(10, cnt, mod) - 1
ans *= pow(9, mod - 2, mod)
if s == D:
    ans += 1
print(ans%mod)