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.util.*;
import java.io.*;

public class C
{
	public static void main( String args[] )throws Exception
	{
		ArrayList<String> arr = new ArrayList<String>();
		Scanner in = new Scanner( System.in );
		String nStr, pref, suff;
		int i, j, a, b, count, test, lengthN, temp, lengthTemp;
		
		test = in.nextInt();
		
		for( i = 0 ; i < test ; i++ )
		{
			a = in.nextInt();
			b = in.nextInt();
			count = 0;
			arr.clear();
			
			int low = a;
			
			if( a < 10 )
			{
				a = 10;
			}
			
			while( a < b )
			{
				nStr = Integer.toString( a );
				lengthN = nStr.length();
				
				for( j = 1 ; j < lengthN ; j++ )
				{
					pref = nStr.substring( 0, lengthN - j );
					suff = nStr.substring( lengthN - j, lengthN );
					//if( i == 3 )
						//System.out.println( pref + " " + suff );
					String tempStr = suff + pref;
					temp = Integer.parseInt( tempStr );
					lengthTemp = Integer.toString( temp ).length();
					
					if( lengthTemp == lengthN && temp != a )
					{
						String ct = nStr + tempStr;
						if( !arr.contains( ct ) && temp <= b && temp >= low )
						{
							arr.add( ct );
							arr.add( tempStr + nStr );
							//if( i == 3 )
								//System.out.println( a + " " + temp );
							count++;
						}
					}
					else
					{
						//if( i == 3 )
							//System.out.println( "GA MASUK " + a + " " + temp );
					}
				}
				
				//System.out.println();
				a++;
			}
				 
			
			System.out.println( "Case #" + (i+1) + ": " + count );
		}
	}
}

class Pair
{
	int x;
	int y;

	public Pair( int x, int y )
	{
		this.x = x;
		this.y = y;
	}
}	