1 #include <iostream>
 2 
 3 using namespace std;
 4 int main()
 5 {
 6     int n,m;
 7     while(cin>>n>>m){
 8         if(n==1){
 9             cout<<0<<endl;
10             continue;
11         }
12         int num = 10;
13         int d = 0;
14         int dn = 0;
15         while(d!=m){
16             dn = num/n;
17             num = num%n;
18             num*=10;
19             ++d;
20         }
21         cout<<dn<<endl;
22     }
23     return 0;
24 }