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 jp.funnything.competition.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.IOUtils;

public class Packer {
    private static void add( final ZipArchiveOutputStream out , final File file , final int pathPrefix ) {
        if ( file.isDirectory() ) {
            final File[] children = file.listFiles();

            if ( children.length > 0 ) {
                for ( final File child : children ) {
                    add( out , child , pathPrefix );
                }
            } else {
                addEntry( out , file , pathPrefix , false );
            }
        } else {
            addEntry( out , file , pathPrefix , true );
        }
    }

    private static void addEntry( final ZipArchiveOutputStream out , final File file , final int pathPrefix , final boolean isFile ) {
        try {
            out.putArchiveEntry( new ZipArchiveEntry( file.getPath().substring( pathPrefix ) + ( isFile ? "" : "/" ) ) );

            if ( isFile ) {
                final FileInputStream in = FileUtils.openInputStream( file );
                IOUtils.copy( in , out );
                IOUtils.closeQuietly( in );
            }

            out.closeArchiveEntry();
        } catch ( final IOException e ) {
            throw new RuntimeException( e );
        }
    }

    public static void pack( final File source , final File destination ) {
        try {
            final ZipArchiveOutputStream out = new ZipArchiveOutputStream( destination );

            add( out , source , FilenameUtils.getPath( source.getPath() ).length() );

            out.finish();
            out.close();
        } catch ( final IOException e ) {
            throw new RuntimeException( e );
        }
    }
}
