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.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;


public class C {
	
	public static void main(String[] args) throws IOException {
		Scanner in = new Scanner(new File("C-small.in"));
		FileWriter fw = new FileWriter("C-small.out");
		
		int T = in.nextInt();
		
		for (int tc = 1; tc <= T; tc++) {
			int A = in.nextInt();
			int B = in.nextInt();
			int count = 0;
			for(int i = A; i < B; i++) {
				for(int j = i + 1; j <= B; j++) {
					if(isRecycledPair(i, j)) {
						count ++;
					}
				}
			}
			fw.write ("Case #" + tc + ": " + count + "\n");
		}
		fw.flush();
		fw.close();
	}
	
	public static boolean isRecycledPair(int a, int b) {
		boolean isRecycled = false;
		String str1 = Integer.toString(a);
		String str2 = Integer.toString(b);
		int len = str1.length();
		for(int i = 0; i < len - 1; i++ ) {
			str1 = str1.substring(len - 1) + str1.substring(0, len - 1);
			if(str1.equals(str2))
				isRecycled = true;
		}
		return isRecycled;
	}

}
