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.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map.Entry;
import java.util.Scanner;

public class G_3 {

    static int a, b;
    static HashMap<String, Integer> map;

    static String change(int n) {
        String s = "" + n;
        int len = s.length();
        int min = Integer.MAX_VALUE;
        int value;
        // String best = null;
        for (int i = 0; i < len; i++) {
            s = s.charAt(len - 1) + s.substring(0, len - 1);
            value = Integer.parseInt(s);
            if (min > value) {
                min = value;
                // best = s;
            }
        }
        return "" + min;
    }

    public static void main(String[] args) throws IOException {
        PrintWriter bw = new PrintWriter(new FileWriter("1.txt"));
        Scanner scan = new Scanner(System.in);
        int T = scan.nextInt();
        map = new HashMap<String, Integer>();
        for (int i = 0; i < T; i++) {
            map.clear();
            a = scan.nextInt();
            b = scan.nextInt();
            for (int j = a; j <= b; ++j) {
                String str = change(j);
                // System.out.println(str);

                if (map.containsKey(str)) {
                    map.put(str, map.get(str) + 1);
                } else {
                    map.put(str, 1);
                }
            }
            long sum = 0;
            for (Entry<String, Integer> e : map.entrySet()) {
                int n = e.getValue();
                sum += n * (n - 1) / 2;
            }
            System.out.println(String.format("Case #%d: %d", (i + 1), sum));
            bw.write(String.format("Case #%d: %d\n", (i + 1), sum));
        }
        bw.flush();
        bw.close();
    }
}
