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

class RecycledNumbers{
	
	
	
	int getcount(int small,int large){
		int count = 0;
		for(int currnum = small; currnum < large; currnum++){
			int permut = currnum;
			int no_of_digits = 0;
			while(permut > 0){
				permut = permut/10;
				no_of_digits++;
			}
			int lastDigit = currnum % 10;
			permut = currnum / 10;
			permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
			while(permut != currnum){
				
				if(permut >= currnum && permut <= large){
					
					count++;
				}
				lastDigit = permut % 10;
				permut = permut / 10;
				permut = permut + lastDigit * (int)Math.pow(10, no_of_digits-1);
				
			}
			
		}
		
		return count;
	}
	
	public static void main(String args[]){
		RecycledNumbers d = new RecycledNumbers();
		
		int no_of_cases = 0;
		String input = "";
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		try{
			no_of_cases = Integer.parseInt(br.readLine());
		}
		catch(Exception e){
			System.out.println("First line is not a number");
		}
		
		for(int i=1; i <= no_of_cases;i++){
			try{
				input = br.readLine();
			}
			catch(Exception e){
				System.out.println("Number of test cases different from the number mentioned in first line");
			}
			
			System.out.print("Case #" +i+": ");
			
			StringTokenizer t =  new StringTokenizer(input);
			int small=0,large=0;
			if(t.hasMoreTokens()){
				small = Integer.parseInt(t.nextToken());
			}
			if(t.hasMoreTokens()){
				large = Integer.parseInt(t.nextToken());
			}
			System.out.println(d.getcount(small,large));
			
		}
		
		
		

	}
	
	
}
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.InputStreamReader;


public class recy {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int stat[] = new int [2000001];
		
		StringBuffer output = new StringBuffer();
		 
		try{
			  FileInputStream fstream = new FileInputStream("/Users/iToR/Documents/workspace/CodeJam3/src/C-small-attempt4.in");
			
			  DataInputStream in = new DataInputStream(fstream);
			  BufferedReader br = new BufferedReader(new InputStreamReader(in));
			  String strLine;
			
			 
			  strLine = br.readLine();
			  int line = (new Integer(strLine)).intValue();
			  
			  int i = 1;
			  
			  
			  
			  
			  while ((strLine = br.readLine()) != null)   {
				 
				  //each case
				  
				 
				  	
					output.append("Case #"+i+": ");
						
					String[] temp;
						 
					/* delimiter */
					String delimiter = " ";
					/* given string will be split by the argument delimiter provided. */
			
					temp = strLine.split(delimiter);
					
					
					int orimin = (new Integer(temp[0])).intValue();
					int min = (new Integer(temp[0])).intValue();
					int max = (new Integer(temp[1])).intValue();
					int count = 0;
					
						 while(min<=max){
							 
							  //try swap
							  String tempStr = ""+min;
							  String oritempStr = ""+min;
							  int oricheck = (new Integer(oritempStr)).intValue();
							  stat[min] = 1;
							  for(int k = 0;k<oritempStr.length()-1;k++){
								  //System.out.println("before:"+ tempStr+"x"+tempStr.length());
								  char first = tempStr.charAt(0);
								  
								  tempStr = tempStr.substring(1,tempStr.length());
								  tempStr+= first;
								  
								  int check = (new Integer(tempStr)).intValue();
								  
								  //System.out.println("after:"+ tempStr+"x"+tempStr.length());
								  if(tempStr.charAt(0)=='0'){
									  
								  }
								  else if(check>0&&check<=max&&check>=orimin){
									  if(check>oricheck){
										  count++;
										 System.out.println(oritempStr+","+check);
									  }
								  }
								  
							  	}
							  
							  min++;							  
						  }
						 
						 
						
						output.append(count);
						if(i<line){
							output.append("\n");
							
						}			
						i++;
			  
			  
			  }
			  //Close the input stream
			  in.close();
			    }catch (Exception e){//Catch exception if any
			  System.err.println("Error1: " + e.getMessage());
			  }
		//write output
		 	try{
			
			  FileWriter fstream = new FileWriter("result.txt");
			  BufferedWriter out = new BufferedWriter(fstream);
			  out.append(output);
			 
			  out.close();
			  }catch (Exception e){
			  System.err.println("Error2: " + e.getMessage());
			  }
	}

}
