#include <bits/stdc++.h> using namespace std; int main() { int x; int n,m; cin>>x>>n>>m; int sum = 0; for(int i = n;i <= m;i++) { int number = i; int flag = false; while(number != 0) { int temp = number % 10; if(temp == x) { flag = true;break; } number /= 10; } if(flag == true) { sum++; } } cout<<sum; return 0; }