import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

//lukewillson
import java.io.PrintStream;
import java.io.File;
import java.util.Scanner;
public class C {    

    public static void main(String[] args) throws Exception {
        new DoC();
    }
}

class DoC {

    public DoC() throws Exception {
        //long time=System.currentTimeMillis();
        System.setOut(new PrintStream(new File("C.out")));
        Scanner sc = new Scanner(new File("C-small-attempt0.in"));
        int runs = Integer.parseInt(sc.nextLine());
        int run = 0;
        while (run++ < runs) {
            System.out.print("Case #" + run + ": ");
            int min=sc.nextInt();
            int max=sc.nextInt();
            int count=0;
            for(int i=min;i<=max;++i)
            {
                for(int j=i+1;j<=max;++j)
                {
                    if(recycle(i,j))
                        count++;
                }
            }
            System.out.println(count);
        }
        //System.out.println(System.currentTimeMillis()-time);
    }
    public boolean recycle(int A,int B)
    {
        String a=""+A;
        String b=""+B;
        for(int i=0;i<b.length();++i)
        {
            String temp=b.substring(i)+b.substring(0,i);
            if(a.equals(temp))
                return true;
        }
        return false;
    }
}
