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;
	}
}

import java.io.*;
import java.util.StringTokenizer;

/**
 * User: Grant
 * Date: 14/04/12
 * Time: 23:29
 */
public class ProblemC {
    public static void main(String[] args) throws IOException {
        // Prepare output file
        File outputFile = new File("E:\\Programming\\Java\\CodeJam\\resources\\problemCOutput.txt");
        if (outputFile.exists()) {
            outputFile.delete();
        }

        FileWriter fileWriter = new FileWriter(outputFile);
        BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);

        // Read input file
        File inputFile = new File("E:\\Programming\\Java\\CodeJam\\resources\\TestInput.txt");
        FileReader fileReader = new FileReader(inputFile);
        BufferedReader bufferedReader = new BufferedReader(fileReader);

        Integer testCases = Integer.parseInt(bufferedReader.readLine().trim());
        for (int i = 0; i < testCases; i++) {
            System.out.println(" ");
            StringTokenizer st = new StringTokenizer(bufferedReader.readLine().trim(), " ");
            int lower = Integer.parseInt(st.nextToken().trim());
            int upper = Integer.parseInt(st.nextToken().trim());

            int count = 0;
            for (int left = lower; left < upper; left++) {
                for (int right = (left + 1); right <= upper; right++) {
                    String leftStr = left + "";
                    String rightStr = right + "";
                        int start = -1;
                        while((start = leftStr.indexOf(rightStr.charAt(0), start+1)) != -1) {
                            if (rightStr.equals(leftStr.substring(start, leftStr.length()) + leftStr.substring(0, start))) {
                                count++;
                                break;
                            }
                        }
                }
            }


            StringBuilder outputLine = new StringBuilder("Case #");
            outputLine.append(i+1).append(": ").append(count).append("\n");
            bufferedWriter.write(outputLine.toString());
        }

        bufferedReader.close();
        fileReader.close();

        // Write output file
        bufferedWriter.flush();
        fileWriter.flush();
        bufferedWriter.close();
        fileWriter.close();
    }
}
