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.*;
import java.util.*;

public class QualC {
	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		
		int z = Integer.parseInt(br.readLine());
		int[] ten = {1, 10, 100, 1000, 10000, 100000, 1000000, 10000000};
		
		for(int i=0; i<z; i++){
			String[] s = br.readLine().split("\\s+");
			
			int a = Integer.parseInt(s[0]);
			int b = Integer.parseInt(s[1]);
			
			int n = Integer.toString(a).length();
			
			HashSet<String> hs = new HashSet<String>();
			
			for(int j=a; j<b; j++){
				int t = j;
				
				for(int k=1; k<n; k++){
					int tt = t%ten[k];
					int ttt = t/ten[k];
					
					int tttt = tt*ten[n-k] + ttt;
					
					if(t < tttt && tttt <= b){
						String ss = Integer.toString(t);
						String sss = Integer.toString(tttt);
						
						hs.add(ss + sss);
					}
				}
			}
			
			System.out.println("Case #" + (i+1) + ": " + hs.size());
		}
	}
}
