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.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.LinkedList;
public class C {

	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader input = new BufferedReader(new InputStreamReader(System.in));

		int n = Integer.parseInt(input.readLine());

		for(int j=0;j<n;j++){
			char[] numbers;
			char[] newNumbers;
			int newNumber=-1;
			int count = 0;

			String AB[] = input.readLine().split(" ");
			int A = Integer.parseInt(AB[0]);
			int B = Integer.parseInt(AB[1]);


			for(Integer original= B; original>A;original--){
				numbers = original.toString().toCharArray();
				perm:
					do{
						newNumbers = new char[numbers.length];
						newNumbers[0]=numbers[numbers.length-1];

						for(int i=1; i<numbers.length ;i++){
							newNumbers[i]=numbers[i-1];
						}
						numbers = newNumbers.clone();
//						if(numbers[0]=='0'){
//							continue perm;
//						}
						newNumber = charToInt(newNumbers);
						if (newNumber>B || newNumber<A){
							continue perm;
						}
						if(newNumber<=B && newNumber>=A && newNumber<original){
							count++;
							//System.out.print(newNumber+"\n");
						}
					}while(newNumber!=original);
			}
			System.out.print("Case #" +(j+1) + ": " + count +"\n");
		}
	}
	public static int charToInt(char[] number){
		int value=0;
		for(int i=0;i<number.length;i++){
			value+= (number[number.length-1-i]-48)*Math.pow(10, i);
		}
		return value;
	}

}
