#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
    int a,b;
    scanf("%d %d",&a,&b);
    int sum=0;
    for (int i=a;i<=b;i++){
        int z=a;
        int cnt=0;
        while(z>0){
            z/=10;
            cnt++;
        }
        for (int j=1;j<=cnt;j++){
            int waste=1;
            int waste1=1;
            for (int e=1;e<=cnt+1;e++){
                waste1*=10;
            }
            for (int e=1;e<=i;e++){
                waste*=10;
            }
            int waste2=i%waste;
            int waste3=(i-waste2)/waste+waste2*waste1/waste;
            if (waste3>i && waste3<=b){
                sum++;
            }
        }
    }
    printf("%d",sum);
    return 0;
}```