M=998244353
m=int(input())
n=list(map(int,input()))[::-1]
l=len(n)
pl=[1]*(l+1)
for i in range(l):
  d=n[i]
  c=(m-1-d)//10+1-(i==l-1 and d==0)
  pl[i+1]=pl[i]*c%M
pr=[1]*(l+1)
for i in range(l):
  d=n[~i]
  c=(m-1-d)//10+1-(i==0 and d==0)
  pr[i+1]=pr[i]*c%M
a=0
for i in range(l):
  d=n[i]
  c=(m-1-d)//10+1
  if i==l-1 and d==0:
    c-=1
    a+=(((c+1)*c*pow(2,M-2,M))*10+d*c)*pl[i]*pr[l-i-1]*pow(m,i,M)
  else:
    a+=(((c-1)*c*pow(2,M-2,M))*10+d*c)*pl[i]*pr[l-i-1]*pow(m,i,M)
  a%=M
print(a)