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;
	}
}

import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.Writer;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class RecycledNumbers {

    private String mInputFileName;
    private String mOutputFileName;
    
    private long A;
    private long B;
    private Set<String> mPairSet = new HashSet<String>();
    
    public RecycledNumbers(String inputFileName, String outputFileName) {
        mInputFileName = inputFileName;
        mOutputFileName = outputFileName;
    }

    public void solve() {
        long start = System.currentTimeMillis();
        Scanner scanner = null;
        try {
            scanner = new Scanner(new FileReader(mInputFileName));
            Writer output = new BufferedWriter(new FileWriter(mOutputFileName));
            int cases = scanner.nextInt();
            for (int i = 1; i <= cases; i++) {
                mPairSet.clear();
                A = scanner.nextLong();
                B = scanner.nextLong();
                System.out.println("CASE: " + i + " / " + cases);
                if (i > 1) output.write("\n");
                output.write("Case #" + i + ": ");
                output.write(getAnswer());
            }
            output.close();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (scanner != null) scanner.close();
        }
        System.out.println("TIME: " + (System.currentTimeMillis() - start));
    }

    private String getAnswer() {
        int res = 0;
        for (long i = A; i <= B; i++) {
            res += getNumPairs(i);
        }
        //System.out.println(res);
        return "" + res;
    }
    
    private int getNumPairs(long num) {
        int res = 0;
        String numStr = "" + num;
        int len = numStr.length();
        if (len > 1) {
            for (int i = 1; i < len; i++) {
                String newStr = numStr.substring(i) + numStr.substring(0, i);
                long newNum = Long.parseLong(newStr);
                if (newNum > num && newNum <= B) {
                    String pair = num + " " + newNum;
                    if (!mPairSet.contains(pair)) {
                        mPairSet.add(pair);
                        res++;
                    }
                }
            }
        }
        return res;
    }

    public static void main(String[] args) {
        String fileName = "test";
        String extension = ".txt";
        String outputSuffix = "_output";
        new RecycledNumbers(fileName + extension, 
                fileName + outputSuffix + extension).solve();
    }

}
