#include<stdio.h> #include<stdlib.h> int main() { int i,sum,m,n,a[10]; sum=0; scanf("%d%d",&m,&n); a[0]=m; for(i=1;i<n;i++) a[i]=a[i-1]*10+m; for(i=0;i<n;i++) sum+=a[i]; printf("%d",sum); }
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