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

class RecycledNumbers { 
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int T = Integer.parseInt(sc.nextLine());
    boolean[] taken = new boolean[2000001];
    
    for (int i=0; i<T; i++) {
    	int count = 0;
    	String[] dat = sc.nextLine().split(" ");
    	Arrays.fill(taken, false);
    	int digits = dat[0].length();
    	int A = Integer.parseInt(dat[0]);
    	int B = Integer.parseInt(dat[1]);
    	for (int j=A; j<=B; j++) {
    		if (!taken[j]) {
    			//System.out.println(j);
    			taken[j] = true;
    			int c = 1;
    			for (int k=1; k<digits; k++) {
    				int rem = j % (int)Math.pow(10, k);
    				int res = rem * (int)Math.pow(10, digits-k) + j / (int)Math.pow(10, k);
    				if (A <= res && res <= B && j != res && !taken[res]) { taken[res] = true; c++; }
    			}
    			if (c > 1) {
    				//System.out.println(j+" "+c);
						int r = 0;
						for (int k=c-1; k>=1; k--) r += k;
						count += r;
					}
    		}
    	}
    	
    	/*int cc= 0;
    	for (int a=A; a<=B; a++) {
    		for (int b=a+1; b<=B; b++) {
    			boolean found = false;
    			for (int k=1; k<digits; k++) {
    				int rem = a % (int)Math.pow(10, k);
    				int res = rem * (int)Math.pow(10, digits-k) + a / (int)Math.pow(10, k);
    				if (res == b) { found = true; break; }
    			}
    			if (found) { cc++; }
    		}
    	}
    	System.out.println(cc);*/
    	System.out.println("Case #" + (i+1) + ": " + count);
    }
  }
}

