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 fixjava;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;

public class IOUtils {

	public static void writeLinesToFile(List<String> lineList, File outputFile) {
		try {
			PrintWriter writer = new PrintWriter(outputFile);
			for (String line : lineList)
				writer.println(line);
			writer.close();
		} catch (FileNotFoundException e) {
			throw new RuntimeException(e);
		}
	}

	public static void writeLinesToFile(List<String> lineList, String outputFilename) {
		writeLinesToFile(lineList, new File(outputFilename));
	}

	// ---------------------------------------------------------------------------------------------------------

	public static ArrayList<String> readLinesFromFile(File inputFile) {
		ArrayList<String> lines = new ArrayList<>();
		for (String line : new FileLineIterator(inputFile))
			lines.add(line);
		return lines;
	}

	public static ArrayList<String> readLinesFromFile(String inputFilename) {
		return readLinesFromFile(new File(inputFilename));
	}

	// ---------------------------------------------------------------------------------------------------------

	public static String readFileAsString(File inputFile) {
		int len = (int) inputFile.length() + 1;
		StringBuilder buf = new StringBuilder(len);
		for (String line : new FileLineIterator(inputFile)) {
			buf.append(line);
			buf.append('\n');
		}
		return buf.toString();
	}

	public static String readFileAsString(String inputFilename) {
		return readFileAsString(new File(inputFilename));
	}
}
