import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
//package RecycleNumber;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;


public class C {
	public static HashSet<String> hm = new HashSet<String>();
	public static void main(String [] args) throws IOException{
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		int num = Integer.parseInt(in.readLine());
		int count = 1;
		rotate(1234,10,2222);
		while(num-- != 0){
			String [] token = in.readLine().split(" ");
			int num1 = Integer.parseInt(token[0]);
			int num2 = Integer.parseInt(token[1]);
			for(int i = num1; i <= num2; i++){
					rotate(i,num1,num2);
			}
			System.out.println("Case #"+ count++ +": " +hm.size());
			hm.clear();
		}
	
	}
	
	public static void rotate(int current, int num1, int num2){
		int times = (current+"").length()-1;
		int check = current;
		String temp = current+"";
		while(times >= 0 ){
			temp = temp.charAt(temp.length()-1) + temp.substring(0,temp.length()-1);
			times--;
			
			if(Integer.parseInt(temp) > num1 && Integer.parseInt(temp) <= num2 && Integer.parseInt(temp) > check){
				hm.add(check +": "+temp);
				//System.out.println(check + ": " + temp);
			}
			
		}
	
		
	}
}
