import sys
input=sys.stdin.readline
def I(): return int(input())
def MI(): return map(int, input().split())
def LI(): return list(map(int, input().split()))

def main():
    mod=10**9+7
    p,k=MI()
    
    def calc_se():
        import itertools
        p=7
        k=1
        ans=0
        for ite in itertools.product([0,1,2,3,4,5,6,7,8,9], repeat=p-1):
            temp=0
            for i in range(p-1):
                temp+=ite[i]*(i+1)
            if temp%p==k:
                print(ite)
                ans+=1
        print(ans)
        
        
    ans=[]
    tar=10
        
    for i in range(p-1):
        temp=tar//p
        rem=tar%p
        ans.append(temp)
        tar=rem*10
        
    ans2=0
    po=1
    for i in range(p-2,-1,-1):
        aaa=ans[i]*po
        ans2=(ans2+aaa)%mod
        po=(po*10)%mod
        
    print(ans2)
        
        
    


main()