import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

package cs224n.gcj;

import java.io.IOException;
import java.util.HashSet;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.FileInputStream;
import java.io.PrintWriter;
import java.io.FileWriter;
import java.io.File;



public class ProbC {

	static int getNRecycledPair(int b, int B){
		
		String s = new Integer(b).toString();		
		int nDigits = s.length();
		
		String ls, rs;
		HashSet<Integer> validPairs = new HashSet<Integer>();
		
		for(int i = 1; i < nDigits; i++){
			ls = s.substring(0, i);
			rs = s.substring(i);
			int rotb = Integer.parseInt((rs+ls));
			if(rotb > b && rotb <= B)
				validPairs.add(rotb);				
		}
		return validPairs.size();
		
	}
	
	static public int getTotRecycledPair(int A, int B){
		
		int n = 0;
		for(int i = A; i <= B; i++){
			n += getNRecycledPair(i, B);
		}
		
		return n;
	}
	
	static public void main(String[] args) throws IOException{
		
		File inFile = new File(args[0]);
		File outFile = new File(args[1]);
		
		if(!inFile.exists())
			System.out.println("File Does Not Exist!");

		
		BufferedReader in = new BufferedReader( new InputStreamReader( new FileInputStream(inFile) ) );
		PrintWriter out = new PrintWriter( new FileWriter(args[1]), true );
		
		String line;
		line = in.readLine();
		int T = Integer.parseInt(line);
		for(int i = 1; i <= T; i++){
			
			line = in.readLine();
			String[] parts = line.split(" ");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			out.print("Case #"+i+": ");
			out.println( getTotRecycledPair(A,B) );
			
		}
		
		
		in.close();
		out.close();
		
		
	}
	
}
