import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Recycled {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            int t = Integer.parseInt(br.readLine());
            for (int i = 0; i < t; i++) {
                String[] str = br.readLine().split(" ");
                int a = Integer.parseInt(str[0]);
                int b = Integer.parseInt(str[1]);
                System.out.println("Case #" + (i + 1) + ": " + find(a, b));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static int find(int a, int b) {
        HashSet<Long> used = new HashSet<Long>();
        int digits = String.valueOf(a).length();
        if (digits == 1) return 0;
        for (int i = a; i <= b; i++) {
            int s = 10;
            int m = (int) Math.pow(10, digits-1);
            for (int j = 0; j < digits-1; j++) {
                int r = i % s;
                if (r < s/10) continue;
                int q = i / s;
                int rn = r * m + q;
                s *= 10; m /= 10;
                if (i != rn && rn >= a && rn <= b) {
                    long pp;
                    if (rn < i) pp = (long)rn << 30 | i;
                    else pp = (long)i << 30 | rn;
                    if (!used.contains(pp)) {
                        used.add(pp);
                    }
                }
            }
        }
        return used.size();
    }
}

package recycle;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;

public class EnvironmentallyFriendly {

	public static void main(String[] args) throws Exception
	{
		BufferedReader br = new BufferedReader(new FileReader(new File("test.txt")));
		BufferedWriter wr = new BufferedWriter(new FileWriter(new File("output.txt")));
		int count = Integer.parseInt(br.readLine());
		int min,max;
		int total;
		String[] vals;
		for(int i=1; i<=count; i++)
		{
			total=0;
			String line = br.readLine();
			vals = line.split(" ");
			min = Integer.parseInt(vals[0]);
			max = Integer.parseInt(vals[1]);
			for(int k =min; k<max; k++)
			{
				total+=numRecyclable(k+"",max);
			}
			wr.write("Case #"+i+": "+total);
			wr.newLine();
			
		}
		wr.close();
	}

	private static int numRecyclable(String num, int max) {
		String newnum;
			
		int total =0,newval,oldval;
		ArrayList<Integer> duplicatecheck = new ArrayList<Integer>();
		for(int i=1; i<num.length(); i++)
		{
			newnum = num.substring(i)+num.substring(0, i);
			newval = Integer.parseInt(newnum);
			oldval = Integer.parseInt(num);
			if(newnum.charAt(0)!='0' && newval<=max
				&& newval > oldval && !duplicatecheck.contains(newval))
			{
				duplicatecheck.add(newval);
				total++;
			}
		}
		return total;
	}
}
