/*
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 * and open the template in the editor.
 */
package gcj;

import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 * @author daniele
 */
public class GCJ_C {
    
    public static void main(String[] args) throws Exception{
        
        
        
        Scanner in = new Scanner(new File(args[0]));
        FileWriter out = new FileWriter("/home/daniele/Scrivania/Output");
        

        int prove=in.nextInt();
        int min,max;
        int cifre;
        int cifreaus;
        String temp;
        int aus;
        int count=0;
        ArrayList<Integer> vals = new ArrayList<Integer>();
        int jcount=0;
        ArrayList<Integer> perm = new ArrayList<Integer>();
        
        out.write("");
        out.flush();
        
        for(int i=1;i<=prove;i++){
            
            out.append("Case #" +i+": ");out.flush();
            
            min=in.nextInt();
            max=in.nextInt();
            
            for(int j=min;j<=max;j++){
               if(!vals.contains(j)){
                    temp=""+j;
                    cifre=temp.length();
                    aus=j;
                    perm.add(j);
                    for(int k=1;k<cifre;k++){
                        aus=rotateOnce(aus);
                        temp=""+aus;
                        cifreaus=temp.length();//elusione zeri iniziali
                        if(aus>=min && aus<=max && aus!=j && cifreaus==cifre && nobody(vals,perm)){ 
                            perm.add(aus);
                            jcount ++;
                            
                        }
                        
                    }
                    while(jcount>0){count+=jcount; jcount--;}
                    vals.addAll(perm);
                    perm= new ArrayList<Integer>();
                    
                }
            }
            out.append(count+"\n");out.flush();
            count=0;
            vals= new ArrayList<Integer>();
        }
        
        
        
    }
        static public int rotateOnce(int n){
            String s=""+n;
            if(s.length()>1){
                s=s.charAt(s.length()-1) + s.substring(0,s.length()-1);
                n=Integer.parseInt(s);
            }
            return n;
        }    
        
        static public boolean nobody(ArrayList<Integer> v,ArrayList<Integer> a){;
            for(int i=0;i<a.size();i++)
                if(v.contains(a.get(i))) return false;
            return true;
        } 
    
}


import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.*;

public class RecycledNumbers {
	BufferedReader reader;
	char [] charInput;
	String [] inputArray;
	int index;
	RecycledNumbers()throws Exception{
		String input=null;
		reader = new BufferedReader(new InputStreamReader(System.in));
		while(reader.ready()){
			if (input==null){
				input =reader.readLine();
			}
			else{
				input =input+ " " + reader.readLine();
			}
		}
		inputArray=input.trim().split(" ");
		index=0;
	}
	String nextInput()throws Exception{
		if(index<inputArray.length){
			int temp=index;
			index++;
			return inputArray[temp];
		}
		else{
			return "\0";
		}
	}
	
	
	void start()throws Exception{
		LinkedList<Integer> prevMatches=new LinkedList<Integer>();
		int numCases=Integer.parseInt(nextInput());
		int A;
		int B;
		int numRecycledPairs=0;
		int [] numArray;
		int digits;
		int testNum=0;
		boolean prevExists=false;
		for(int i=0;i<numCases;i++){
			A=Integer.parseInt(nextInput());
			B=Integer.parseInt(nextInput());
			digits=numDigits(A);
			numRecycledPairs=0;
			for(int j=A;j<=B;j++){
				prevMatches.clear();
				numArray=new int[digits*2-1];
				testNum=j;
				for (int k=numArray.length-1;k>=0;k--){
					testNum=testNum/10;
					if(k==digits-1){
						testNum=j;
					}
					numArray[k]=testNum%10;
				}
				for (int k=1;k<digits;k++){
					testNum=0;
					for (int l=k;l<digits+k;l++){
						testNum=testNum*10;
						testNum=testNum+numArray[l];
					}
					if (prevMatches.size()==0){
						prevExists=false;
					}
					else{
						for (Integer m: prevMatches){
							if (m.intValue()==testNum){
								prevExists=true;
								break;
							}
							else{
								prevExists=false;
							}
						}
					}
					if (testNum>=A && testNum<=B && testNum>j && prevExists==false){
						numRecycledPairs++;
						prevMatches.add(new Integer(testNum));
					}
				}
			}
			System.out.printf("Case #%d: %d", i+1,numRecycledPairs);
			if (i!=numCases-1){
				System.out.println();
			}
		}
	}


	//credit to Marian	
	//http://stackoverflow.com/questions/1306727/way-to-get-number-of-digits-in-an-int
	int numDigits(int n){
		if (n < 100000)
		{
			// 5 or less
			if (n < 100)
			{
				// 1 or 2
				if (n < 10)
					return 1;
				else
					return 2;
			}
			else
			{
				// 3 or 4 or 5
				if (n < 1000)
					return 3;
				else
				{
					// 4 or 5
					if (n < 10000)
						return 4;
					else
						return 5;
				}
			}
		}
		else
		{
			// 6 or more
			if (n < 10000000)
			{
				// 6 or 7
				if (n < 1000000)
					return 6;
				else
					return 7;
			}
			else
			{
				// 8 to 10
				if (n < 100000000)
					return 8;
				else
				{
					// 9 or 10
					if (n < 1000000000)
						return 9;
					else
						return 10;
				}
			}
		}
	}
}

