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();
    }
}

import java.io.*;
import java.util.StringTokenizer;
import java.lang.Math;

public class qualifycodejamC{

	public static int checkNum(int num, int m, int n){
			String snum = Integer.toString(num);
			int[] array = new int[snum.length()];
			int min = num;
			int count = 0;

			for(int i=0;i<array.length;i++){
				boolean dupe = false;
				char[] temp = new char[snum.length()];
				for(int j=0;j<array.length;j++){
					temp[j] = snum.charAt((j + i) % snum.length());


				}
				array[i] = Integer.parseInt(new String(temp));
				//do a dupe check
				for(int k=0;k<i;k++){
					if(array[k] == array[i]){
						dupe = true;
					}
				}
				//System.out.print(";"+array[i]+";");

				if (m <= array[i] && array[i] <= n && array[i] != num && !dupe){
					count++;

				}
				if(Math.min(min,array[i]) >= m){
					min = (int)Math.min(min,array[i]);
				}
				//System.out.println("length: "+array.length+" current: "+num+"; min: "+ min);
			}

			if(min != num){
				//System.out.println();
				return 0;
			}
			//System.out.println("!X count: "+ count);
			if(count == 2){
				return 3;
			}else if(count == 3){
				return 6;
			}else if(count == 4){
				return 10;
			}else if(count == 5){
				return 16;
			}else if(count == 6){
				return 21;
			}else if(count == 7){
				return 28;
			}else if(count == 8){
				return 36;
			}

			return count;
	}

	public static void main(String[] args){

		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		   String x = null;
		   String linein = null;
		   int totalcases = 0;
		   int result = 0;
		   int n = 0;
		   int m = 0;
		   int counter = 1;


		   try{
		    x = br.readLine();
		    totalcases = Integer.parseInt(x);

		    while( (linein = br.readLine()) != null){
					result = 0;

					StringTokenizer st = new StringTokenizer(linein);
					n = Integer.parseInt(st.nextToken());
					m = Integer.parseInt(st.nextToken());

					for (int i=n;i<m+1;i++){
						result = result + checkNum(i,n,m);
					}

					System.out.print("Case #" + (counter) + ": "+ result);
					//System.out.println(" debug: return val: "+process_return+"; used surprises: " + surprise_count + "/"+ttl_surprises);
					System.out.println();

					counter++;
				}

		   }
		   catch (IOException e) {
			   e.printStackTrace();
		   }

	}

}