import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

import java.util.Set;
import java.util.Scanner;
import java.io.OutputStream;
import java.io.IOException;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.io.FileInputStream;
import java.util.HashSet;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
	public static void main(String[] args) {
		InputStream inputStream;
		try {
			inputStream = new FileInputStream("Main/input.txt");
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
		OutputStream outputStream;
		try {
			outputStream = new FileOutputStream("Main/output.txt");
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
		Scanner in = new Scanner(inputStream);
		PrintWriter out = new PrintWriter(outputStream);
		C solver = new C();
		int testCount = Integer.parseInt(in.next());
		for (int i = 1; i <= testCount; i++)
			solver.solve(i, in, out);
		out.close();
	}
}

class C {
    public void solve(int testNumber, Scanner in, PrintWriter out) {
        int A = in.nextInt(), B = in.nextInt();
        int digit, a = A, ten = 1;
        digit = countDigit(a);
        for (int i = 0; i < digit - 1; ++i) ten *= 10;
        Set<Integer> set = new HashSet<Integer>();
        long ans = 0;
        for (int num = A; num <= B; ++num)
            if (!set.contains(num)) {
                Set<Integer> curSet = new HashSet<Integer>();
                int cur = num;
                curSet.add(cur);
                for (int i = 0; i < digit; ++i) {
                    cur = cur % 10 * ten + cur / 10;
                    if (A <= cur && cur <= B && countDigit(cur) == digit)
                        curSet.add(cur);
                }
                int cnt = curSet.size();
                ans += (cnt * (cnt - 1)) / 2;
                for (int i : curSet) set.add(i);
            }
        out.print(String.format("Case #%d: %d\n", testNumber, ans));
    }

    private int countDigit(int n) {
        int digit = 0;
        while (n > 0) {
            digit++;
            n /= 10;
        }
        return digit;
    }
}

