import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

class RecycledNumbers{
	
	
	
	int getcount(int small,int large){
		int count = 0;
		for(int currnum = small; currnum < large; currnum++){
			int permut = currnum;
			int no_of_digits = 0;
			while(permut > 0){
				permut = permut/10;
				no_of_digits++;
			}
			int lastDigit = currnum % 10;
			permut = currnum / 10;
			permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
			while(permut != currnum){
				
				if(permut >= currnum && permut <= large){
					
					count++;
				}
				lastDigit = permut % 10;
				permut = permut / 10;
				permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
				
			}
			
		}
		
		return count;
	}
	
	public static void main(String args[]){
		RecycledNumbers d = new RecycledNumbers();
		
		int no_of_cases = 0;
		String input = "";
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		try{
			no_of_cases = Integer.parseInt(br.readLine());
		}
		catch(Exception e){
			System.out.println("First line is not a number");
		}
		
		for(int i=1; i <= no_of_cases;i++){
			try{
				input = br.readLine();
			}
			catch(Exception e){
				System.out.println("Number of test cases different from the number mentioned in first line");
			}
			
			System.out.print("Case #" +i+": ");
			
			StringTokenizer t =  new StringTokenizer(input);
			int small=0,large=0;
			if(t.hasMoreTokens()){
				small = Integer.parseInt(t.nextToken());
			}
			if(t.hasMoreTokens()){
				large = Integer.parseInt(t.nextToken());
			}
			System.out.println(d.getcount(small,large));
			
		}
		
		
		

	}
	
	
}
import java.util.LinkedList;
import java.util.Scanner;
public class problemC
{
    static final int until = 1000;
    static LinkedList<Integer> res[] = new LinkedList[until+1];
    static Object speed[][] = new Object[until+1][];
    public static void main(String []args)
    {
        for(int i=1;i<=until;i++)
            GO(i);
        for(int i=1;i<=until;i++)
            speed[i] = res[i].toArray();
        Scanner scanner = new Scanner(System.in);
        int N = scanner.nextInt();
        for(int num=1;num<=N;num++)
        {
            int ret = 0;
            int A = scanner.nextInt();
            int B = scanner.nextInt();
            for(int i=A;i<=B;i++)
            {
                int len = res[i].size();
                for(int j=0;j<len;j++)
                    if(((Integer)speed[i][j])<=B)
                        ret++;
            }
            System.out.println("Case #"+num+": "+ret);
        }
    }
    public static void GO(int num)
    {
        res[num] = new LinkedList<Integer>();
        String str = Integer.toString(num);
        int len = str.length();
        for(int i=0;i<len;i++)
        {
            str = str.substring(1,len)+str.charAt(0);
            int rev = new Integer(str);
            if(!res[num].contains(rev) && rev>num)
                res[num].add(rev);
        }
    }
}
