mod = 998244353
M = int(input())
C = [0 for _ in range(10)]
S = [0 for _ in range(10)]

for c in range(10):
  r = M % 10
  n = (M // 10)
  if r > c:
    n += 1
  n %= mod
  C[c] = n % mod
  S[c] = n * c + 5 * (n * (n - 1) % mod)
  S[c] %= mod

N = input()
if N[0] == '0' and M == 10:
  print(0)
  exit()

ans = 0
res = 1
M %= mod
for i in range(len(N)):
  ans = ans * M % mod
  n = int(N[i])
  c = C[n]
  if n == 0 and i == 0:
    c -= 1
    c %= mod
  ans = ans * c % mod
  ans = (ans + S[n] * res) % mod
  res = res * c % mod
print(ans)