import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
import java.awt.print.Printable;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;


public class C {
    public static void main(String[] args) throws IOException {
        Scanner scanner = null;
        scanner = new Scanner(new File("C-small-attempt0.in"));
//        scanner = new Scanner(System.in);
        FileWriter writer = new FileWriter("C.out");
        int t = scanner.nextInt();
        for (int tt = 1; tt <= t ; tt ++ ) {
            int a = scanner.nextInt();
            int b = scanner.nextInt();
            
            String str;
            int k;
            int ans = 0;
            String tmp;
            for (int i = a; i <= b; i ++) {
                str = Integer.toString(i);
                if (str.length() > 1) {
                    for (int j = 1; j < str.length(); j++) {
                        tmp = str.substring(j, str.length())
                        + str.substring(0,j);
                        if (tmp.startsWith("0")) continue;
                        k = Integer.parseInt(tmp);
                        if (k >=a && k <= b && k > i) ans ++;
                    }
                }
            }
            
            writer.write(String.format("Case #%d: %d\n", tt,ans));
            System.out.println(String.format("Case #%d: %d\n", tt,ans));
        }
        writer.close();
    }

}
