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);
		}

	}
}

package codejam;

import org.apache.commons.io.FileUtils;

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

/**
 * Hello world!
 *
 */
public class App 
{
    public static void main( String[] args ) throws Exception
    {
        String input = FileUtils.readFileToString(new File("/Users/adilmezghouti/Documents/codejam/src/main/java/codejam/input.txt"));
        String[] arr = input.split("\\n");
        String[] split;
        int size = Integer.parseInt(arr[0]);
        App app = new App();

        List<String> lines = new ArrayList<String>();
        for(int i=1;i <= size;i++){
            split = arr[i].split(" ");
            lines.add("Case #" + i + ": " + app.permute(split[0], split[1]));
        }

        FileUtils.writeLines(new File("output.txt"), lines);


    }

    public int permute(String a, String b){
        if(a.length() <= 1) return 0;

        int counter = 0;
        int floor = Integer.parseInt(a);
        int ceil = Integer.parseInt(b);
        int buffer = floor;

        while(buffer < ceil){
            String str = String.valueOf(buffer);
            for(int i=0;i < str.length() - 1;i++){
                try {
                    int result = Integer.parseInt(str.substring(str.length() - 1 - i,str.length()) + str.substring(0,str.length() - i - 1));
                    if( result > buffer && result <= ceil) {
                        counter++;
                        //System.out.println(buffer + "  " + result + "  " + counter);
                    }
                }catch(Throwable t){
                    System.out.println(buffer);
                }
            }
            buffer++;
        }
        return counter;
    }
}


