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 in = new Scanner(System.in);
		int T = in.nextInt();
		for(int zz = 1; zz <= T;zz++){
			int A = in.nextInt();
			int B = in.nextInt();
			int result = 0;
			for(int i=A;i<=B;i++) {
				ArrayList<Integer> pairs = new ArrayList<Integer>();
				String ns = i+"";
				for (int j=ns.length()-1;j>0;j--) {
					String k = ns.substring(j);
					String newval = k + ns.substring(0,j);
					int m = Integer.parseInt(newval);
					if (m>i && A<m && B>=m) { 
						if (pairs.indexOf(m)==-1)
							pairs.add(m);
					}
				}
				result += pairs.size();
			}
			
			System.out.format("Case #%d: %d\n", zz, result);
		}
	}
	
}
