import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

import java.util.*;
public class C {
	public static void main (String [] arg) {
		
		int [][] store = new int [2000010][7];
		for (int i = 1; i<store.length; ++i) {
			int ptr = 0;
			int j = rotate(i);
			while (j != i) {
				if (j > i) store[i][ptr++] = j;
				j = rotate(j);
			}
		}
		Scanner sc = new Scanner(System.in);
		int T = Integer.parseInt(sc.nextLine());
		for (int ii = 1; ii<=T; ++ii) {
			//Something
			int A = sc.nextInt();
			int B = sc.nextInt();
			int count = 0;
			for (int a = A; a<B; ++a)
				for (int i = 0; i<store[a].length && store[a][i] > 0; ++i) 
					if (store[a][i] <= B) count++;
			
			
			int ans = count;
			System.out.printf("Case #%d: %s\n",ii,ans);
		}
	}
	public static int rotate(int a) {
		String s = Integer.toString(a);
		do {
			s = s.substring(1) + s.charAt(0);
		} while (s.charAt(0) == '0');
		
		return Integer.parseInt(s);
	
	}
	
}