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 RecycledNumbers {
	
	public static int countRecycledNumbers(int a,int b){
		int count=0;
		int t[][] = new int[(b-a)+1][(b-a)+1];
		for(int i=0; i<(b-a)+1; i++){
			for(int j=0; j<(b-a)+1; j++){
				t[i][j]=0;
			}
		}
		int max = String.valueOf(a).length();
		for(int j=a; j<=b; j++){
			int n = j;	
			for(int i=1; i<max; i++){
				int m = Integer.parseInt(String.valueOf(n).substring(max-i)+String.valueOf(n).substring(0,max-i));
				if(a<=n && n<m && m<=b){
					if(t[n-a][m-a]==0){
						t[n-a][m-a]=1;
						count++;
					}
				}
			}
		}
		return count;
	}
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int T = sc.nextInt();
		for (int i = 0; i < T; i++) {
			int A = sc.nextInt();
			int B = sc.nextInt();
			int count = countRecycledNumbers(A,B);
			System.out.println("Case #" + (i + 1) + ": "+count );
		}
	}
}
