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.ArrayList;
import java.util.List;

public abstract class JamProblem {

    int caseCount;
    int lastLine;

    abstract String solveCase(JamCase jamCase);
    abstract JamCase parseCase(List<String> file, int line);
    List<String> loadFile() throws IOException {
        FileReader inputStream = new FileReader("C:\\projekt\\codejam\\src\\input.txt");
        BufferedReader reader = new BufferedReader(inputStream);
        List<String> list = new ArrayList<String>();
        while (true) {
            String line = reader.readLine();
            if (line == null) {
                break;
            }
            list.add(line);
        }
        return list;
    }

    void go() throws IOException {
        List<String> file = loadFile();


        parseFirstLine(file);
        FileWriter writer = new FileWriter("C:\\projekt\\codejam\\src\\otput.txt");
        for (int c=0; c< caseCount; c++) {
            JamCase casee= parseCase(file, lastLine);
            lastLine += casee.lineCount;
            String s = solveCase(casee);
            writer.write("Case #" + (c+1) +": " + s + "\n");
        }
        writer.close();
    }

    void parseFirstLine(List<String> file) {
        int[] firstLine = JamUtil.parseIntList(file.get(0), 1);
        this.caseCount = firstLine[0];
        lastLine = 1;
    }
}
