import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class Main {

//	static int MAX = 10000;
	static int MAX = 2000000;
	static Object[] All = new Object[MAX+1];
	
	static int size( int x ) {
		if(x>999999) return 7;
		if(x>99999)  return 6;
		if(x>9999)   return 5;
		if(x>999)    return 4;
		if(x>99)     return 3;
		if(x>9)      return 2;
		return 1;
	}
	static int[] rotate( int value ) {
		List<Integer> result = new ArrayList<Integer>();
		int[] V = new int[8];
		int s = size(value);
		int x = value;
		
		for(int i=s-1;i>=0;i--) {
			V[i] = x%10;
			x /=10;
		}
		int rot;
		for(int i=1; i<s; i++) {
			if(V[i]!=0){
				rot=0;
				for(int j=0,ii=i;j<s; j++,ii=(ii+1)%s){
					rot=rot*10+V[ii];
				}
				if(rot>value && !result.contains(rot))
					result.add(rot);
			}
		}
		if( result.isEmpty() )
			return null;
		int[] r = new int[result.size()];
		for(int i=0; i<r.length; i++)
			r[i]=result.get(i);
		return r;
	}
	
	static void precalculate() {
		for(int i=1; i<=MAX; i++){
			All[i] = rotate(i);
		}
	}
	static int solve( Scanner in ) {
		int A, B, sol=0;
		
		A = in.nextInt();
		B = in.nextInt();

		for( int i=A; i<=B; i++) {
//			List<Integer> result = rotate(i);
			if( All[i]!=null ) {
				for(int value: (int[])All[i] ) {
					if( value <= B )
						sol++;
				}
			}
		}

		return sol;
	}
	
	public static void main ( String args[] ) {
		int T; 
		Scanner in = new Scanner(System.in);
		T = in.nextInt();
		int cnt=0;
		int sol;
		precalculate();
		for( cnt=1; cnt<=T; cnt++ ) {
			sol = solve( in );
			System.out.printf("Case #%d: %d\n", cnt, sol);
		}

	}
}

import java.io.*;
import java.util.HashSet;
import java.util.Set;

/**
 * Created by IntelliJ IDEA.
 * User: YC14RP1
 * Date: 4/14/12
 * Time: 12:57 AM
 * To change this template use File | Settings | File Templates.
 */
public class Test3 {


    public static void main(String[] args) throws FileNotFoundException {
        String path = "C:\\Users\\YC14rp1\\Downloads\\C-large.in";
        //String path = "C:\\Users\\YC14rp1\\Downloads\\C-small-attempt0.in";
        try{
            // Open the file that is the first
            // command line parameter
            FileInputStream fstream = new FileInputStream(path);
            // Get the object of DataInputStream
            DataInputStream in = new DataInputStream(fstream);
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            String strLine;
            //Read File Line By Line
            strLine = br.readLine();
            int n = Integer.valueOf(strLine);
            for (int i=1;i<=n;i++) {
                strLine = br.readLine();
                String[] split = strLine.split(" ");
                String s1 = split[0];
                long d1 = Long.valueOf(s1);
                String s2 = split[1];
                long d2 = Long.valueOf(s2);
                int res = 0;
                for (long j=d1;j<=d2;j++) {
                    Set<Long> cSet = new HashSet<Long>();
                    String ss = String.valueOf(j);
                    for (int k=0;k<s1.length()-1;k++) {
                        String s = ss.substring(k+1)+ss.substring(0,k+1);
                        Long r = Long.valueOf(s);
                        if ((r>j) && (r>=d1) && (r<=d2)) {
                            if (!cSet.contains(r)) {
                                //System.out.println(j+"/"+r);
                                res++;
                            }
                            cSet.add(r);
                            //res++;
                        }
                    }
                }
                // Print the content on the console
                System.out.println("Case #" + i + ": " + res);
            }
            //Close the input stream
            in.close();
        } catch (IOException e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }
    }

}
