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.*;

public class C {

    public static void main(String args[]){
        Scanner scanner = new Scanner(System.in);
        int testCount = scanner.nextInt();
        HashSet<String> hashResult = new HashSet<String>();
        for (int test = 1; test <= testCount; test++){
            int min = scanner.nextInt();
            int max = scanner.nextInt();
            int total=0;
            for (Integer i=min; i<=max;i++){
                char[]numChar= i.toString().toCharArray();
                for (int k=0; k<=numChar.length-1;k++){

                    // Move ponteiro
                    char charTemp=numChar[numChar.length-1];
                    for (int j=numChar.length-2;j>=0;j--){
                        numChar[j+1]=numChar[j];
                    }
                    numChar[0]=charTemp;
                    Integer result = Integer.parseInt(new String(numChar));
                    if(i<result && result <=max) {
                        hashResult.add(i.toString()+result.toString());
                        total+=1;
                    }

                }

            }
            System.out.println("Case #" + (test) + ": "+hashResult.size());
            hashResult.clear();
        }
    }

}
