@@ -0,0 +1,14 @@
+#include<bits/stdc++.h>
+using namespace std;
+int main(){
+ int a, n;
+ cin >> a >> n;
+ int s = 0, t = a;
+ for(int i=0;i<n;i++) {
+ s = s + t;
+ t = t * 10 + a;
+
+ }
+ cout<<s<<endl;
+ return 0;
+}
