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.*;
public class Rec{
	public static void rotateArray(char[] array, int amount) 
	{ 
		for( int j=0; j<amount; j++) {
			char a = array[0];
			int i;
			for(i = 0; i < array.length-1; i++){
				array[i] = array[i+1];
			}
			array[array.length-1]= a;
		}
	}
	public static boolean check(int a,int b,int c){
		return (c <=b && c>=a);
	}
	public static boolean sameElem(char[] c){
		for(int i=0;i<c.length-1;i++){
			if(c[i]!=c[i+1])
				return false;
		}
		return true;
	}
	public static boolean equal(char[] a,char[] b){
		for(int i=0;i<a.length;i++){
			if(a[i]!=b[i])
				return false;
		}
		return true;
	}
	public static void main(String args[])throws Exception{
		BufferedReader br = new BufferedReader(new FileReader("C-small-attempt0.in"));
		PrintWriter pw = new PrintWriter(new FileWriter("c.out"));
		String num = br.readLine();
		String line = br.readLine();
		
		int casenum=1;
		while(line!=null){
			String[] nums = line.split(" ");
			int a = Integer.parseInt(nums[0]);
			int b = Integer.parseInt(nums[1]);
			int digits = nums[0].length();
			int ctr=0;
			if(digits<=1){
				pw.println("Case #"+casenum+": "+0);
				casenum++;
				line = br.readLine();
				continue;
			}
			
			for(int i=a;i<=b;i++){
				String cmp = Integer.toString(i);
				LinkedHashSet<String> set = new LinkedHashSet<String>();
				char[] arr = cmp.toCharArray();
				int range=0;
				int equal=0;
				for(int j=0;j<digits-1;j++){
					rotateArray(arr,1);
					if(sameElem(arr))
						continue;
					String sss = new String(arr);
					if(sss.equals(cmp))
						continue;
					if(set.contains(sss))
						continue;
					if(check(a,b,Integer.parseInt(sss))){
						set.add(sss);
					}
				}
				ctr+=set.size();
			}
			pw.println("Case #"+casenum+": "+(ctr/2));
			casenum++;
			line = br.readLine();
		}
		pw.flush();
	}
}