#include <bits/stdc++.h> using namespace std; int main() { int x,m,n,sum = 0; cin>>x; cin>>m>>n; for(int i = m;i <= n;i++) { int g,s,b,q; g = i % 10; s = i / 10 % 10; b = i / 100 % 10; q = i / 1000; if(g == x || s == x || b == x || q == x) { sum += 1; } } cout<<sum<<endl; return 0; }