import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}

import java.util.Scanner;


public class code13 {
    
    public static boolean recheck(int n, int m){
    int length= String.valueOf(m).length();
    boolean answer=false;
  
    for(int j=0;j<length;j++){  int r=(int)Math.pow(10,j);
    int e=(int) Math.pow(10,length-j); int p=n/r; int k=n%r;
    int x= k*e; int y= x+p;
    if(y==m){answer = true; break;}else{}}
    return answer;}
    
    public static int sol(int a, int b){
    int ans=0;
    for(int o=a;o<b;o++){
    for(int p=b;p>o;p--){
    if(recheck(o,p)){ans++;}else{}}}
    return ans;}
    public static void main(String[] args) {
       Scanner c = new Scanner(System.in);
     int times=c.nextInt();
     for(int p=0;p<times;p++){
     int s= sol(c.nextInt(),c.nextInt());
      System.out.println("Case #"+(p+1)+":  "+s);
     }
  }
}
