#include <bits/stdc++.h>
using namespace std ;
int main()
{
int n,sumd=0,digit=0,x,y,sum=0,num=0;
cin>>n>>x>>y;
for(int j=0;n>0;j++)
{
num=n;
for(int i=0 ; num>=1;i++)
{
digit=num%10;
sumd +=digit;
num=num/10;
}
if(sumd>=x&&sumd<=y)
sum+=n;
n--;
}
cout<<sum;
return 0 ;
}
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