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.*;

public class recycled {
	private boolean compare(String s1, String s2){
		String s3 = s2+s2;
		boolean result = s3.contains(s1);
		return result;
	}
	private void go() throws Exception {
		File infile = new File("C-small-attempt1.in");
		BufferedReader br = new BufferedReader(new InputStreamReader(
				new FileInputStream(infile)));
		int num_of_cases = Integer.parseInt(br.readLine());
		for (int i = 1; i <= num_of_cases; i++) {
			String[] case_str = br.readLine().split(" ");
			int begin_num = Integer.parseInt(case_str[0]);
			int end_num = Integer.parseInt(case_str[1]);
			int satisifed = 0;
			for(int k=begin_num;k<end_num;k++){
				if(k/10==0)continue;
				String cur_num_str = new Integer(k).toString();
				for(int j=k+1;j<=end_num;j++){
					if(compare(cur_num_str,new Integer(j).toString()))
							satisifed++;
				}
			}
			System.out.println("Case #"+i+": "+satisifed);
		}
	}
	public static void main(String[] args){
		try {
			new recycled().go();
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}
}
