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;
	}
}
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;

public class RecycledNumbers {

	int noOfTestCases = 0;
	int[][] testData;
	
	
	public static void main ( String[] args ) {
		
		String fileName = "problemc.sample.in";
		
		if ( args.length > 0 ) {
			fileName = args[0];
		}
		
		RecycledNumbers rn = new RecycledNumbers ( );
		
		try {
			rn.readInputFile ( fileName );
		}
		catch ( IOException e ) {
			System.err.println ( "Problem reading the input file" );
			e.printStackTrace();
		}
		//rn.getRotatedNumbers ( "123456" );
		rn.processTestData ( );
	}
	
	private void processTestData ( ) {
		
		for ( int i = 0; i < noOfTestCases; i++ ) {
			Set < String > unique = new HashSet < String >(); 
			int from = testData[i][0];
			int to = testData[i][1];
			
			for ( int j = from; j <= to; j++ ) {
				int[] rotatedNumbers = getRotatedNumbers ( "" + j );
				
				checkIfValid ( rotatedNumbers, j, from, to, unique );
			}
			System.out.println ( "Case #" + (i+1) + ": " + unique.size ( ));
		}
		
	}
	
	private void checkIfValid ( int[] in, int current, int from, int to, Set < String > unique ) {
		
	
		for ( int i = 0; i < in.length; i++ ) {
			int number = in[i];
			if ( number < from ) {
				
			}
			else if ( number > to ) {
				
			}
			else if ( number <= current ) {
				
			}
			else {
				//System.out.println ( number );
				unique.add ( ""+ number + current );
			}
		}
	}
	
	private int[] getRotatedNumbers ( String input ) {
		
		int length = input.length ( );
		int[] output = new int[length-1];
		char[] outstring = input.toCharArray();
		
		for (int i = 0; i < length-1; i++)  { //Length-1 or length?
			char ch = outstring[length - 1];
			for (int j = length - 1; j > 0; j--)  {
				outstring[j] = outstring[j - 1];
			}
			outstring[0] = ch;
			output[i] = Integer.parseInt ( new String(outstring ) );
			
		}
		
		return output;
		
	}
	
	private void readInputFile ( String fileName ) throws IOException {
		
		BufferedReader br = new BufferedReader ( new FileReader ( fileName ) );
		noOfTestCases = Integer.parseInt ( br.readLine ( ) );
		testData = new int[noOfTestCases][2];
		
		for ( int i = 0; i < noOfTestCases; i++ ) {
			String[] data = br.readLine ( ).split ( " " );
			testData[i][0] = Integer.parseInt ( data[0] );
			testData[i][1] = Integer.parseInt ( data[1] );
		}
	}
}
