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.io.*;
import java.util.*;

class MyReader{
    private BufferedReader reader = null;
    private StringTokenizer tokenizer = null;
    MyReader(Reader r) throws IOException{
        reader = new BufferedReader(r);
    }
    public int nextInt() throws IOException {
        return Integer.parseInt(nextToken());
    }
    public long nextLong() throws IOException{
        return Long.parseLong(nextToken());
    }
    public double nextDouble() throws IOException{
        return Double.parseDouble(nextToken());
    }
    public String nextLine() throws IOException{
        return reader.readLine();
    }
    public String nextToken() throws IOException {
        while (tokenizer == null || !tokenizer.hasMoreTokens()) {
            tokenizer = new StringTokenizer(reader.readLine());
        }
        return tokenizer.nextToken();
    }
}


public class Temp {
    public static boolean cycled(int n, int m){
        String s = String.valueOf(m);
        for (int i = 0; i < s.length(); ++i){
            String str = s.substring(i) + s.substring(0,i);
            int k = Integer.valueOf(str);
            if (n==k) return true;                  
        }
        return false;
    }
    public static void main(String[] args) throws IOException {
        MyReader reader = new MyReader(new InputStreamReader(System.in));
        PrintWriter writer = new PrintWriter("C.out");
        int t = reader.nextInt();
        for (int tt = 0; tt < t; ++tt){
            int a = reader.nextInt();
            int b = reader.nextInt();
            int ans=0;
            Set<Integer> set = new HashSet<Integer>();
            for (int i=a; i<=b; ++i)
                for (int j=i+1; j<=b; ++j)
                    if (cycled(i,j)) { set.add(j); ans++; }
            writer.println("Case #" + (tt + 1) + ": " + ans);
        }
        writer.close();
    }
}
