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.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;


public class C {
    public static void main (String [] args) throws FileNotFoundException {
        Scanner input = new Scanner(new File("csmall.in"));
        int count = input.nextInt();
        for (int i = 0; i < count; i++) {
            int A = input.nextInt();
            int B = input.nextInt();
            System.out.println("Case #" + (i+1) + ": " + doWork(A, B));
        }
    }
    
    private static int doWork(int a, int b) {
        int count = 0;
        int n = a;
        int m = a + 1;
        while (m <= b) {
            n = a;
            while (n < m) {
                if (checkRotation(Integer.toString(n), Integer.toString(m)))
                    count++;             
                n++;
            }
            m++;
        }
        return count;
    }

    private static boolean checkRotation(String given, String toCheck) {
        char [] giv = given.toCharArray();
        char [] temp = new char[giv.length + 1];
        int i , j , n;
        n = temp.length - 1;
        for (i = 0; i < giv.length; i++) {
            temp[i] = giv[i];
        }
        for(i = 0; i < given.length(); i++)
        {
            temp[n] = temp[0];

            for(j = 0; j < n; j++)
            {
                temp[j] = temp[j+1];
            }
            char[] moreTemp = new char[giv.length];
            for (int k = 0; k < giv.length; k++) {
                moreTemp[k] = temp[k];
            }
            if ((new String(moreTemp)).equals(toCheck)) {
                return true;
            }
            //System.out.printf("\n %s", new String(moreTemp));
        }
        return false;
    }
}
