1912.里程表

include”bits/stdc++.h”

using namespace std;
using gg=long long;
gg x,y,ans;

int main(){
ios::sync_with_stdio(false);
cin.tie(0);
cin>>x>>y;
int xl=to_string(x).size(),yl=to_string(y).size();
for(int i=xl;i<=yl;i){
for(int j=1;j<=9;j){
gg temp=j*pow(10,i-1);
if(temp>=x&&temp<=y) ans;
}
for(int j=1;j<=9;j){
for(int k=0;k[HTML_REMOVED]=x&&temp<=y) ans++;
}
}
}
}
cout<<ans<<endl;
return 0;
}