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 RecycledNumbers {
	
	static class InputReader {
		BufferedReader bin;
		StringTokenizer tokenizer;
		
		public InputReader(InputStream in) {
			bin = new BufferedReader(new InputStreamReader(in));
			tokenizer = null;
		}
		
		public InputReader(String fname) {
			try {
				bin = new BufferedReader(new FileReader(fname));
				tokenizer = null;
			} catch (Exception e) {
				throw new RuntimeException(e);
			}
		}
		
		public String next() {
			
			while( tokenizer == null || !tokenizer.hasMoreTokens())  {
				try {
					tokenizer = new StringTokenizer(bin.readLine());
				} catch(IOException e) {
					throw new RuntimeException(e);
				}
			}
			return tokenizer.nextToken();
		}
		
		public String readLine() {
			try {
				return bin.readLine();
			} catch (IOException e) {
				throw new RuntimeException(e);
			}
		}
		
		public int nextInt() {
			return Integer.parseInt(next());
		}
		
		public long nextLong() {
			return Long.parseLong(next());
		}
		
		public double nextDouble() {
			return Double.parseDouble(next());
		}
		
		public float nextFloat() {
			return Float.parseFloat(next());
		}
		
		public void close() {
			try {
				bin.close();
				tokenizer = null;
			} catch ( IOException e) {
				throw new RuntimeException(e);
			}
		}
	}

	public static void main(String[] args) throws IOException {
		//InputReader in = new InputReader(System.in);
		InputReader in = new InputReader("C-small-attempt0.in");
		PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("A-small-rcnum.out")));
		//PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
		int ctr = 0,start,end;
		int numTc = in.nextInt();
		
		for ( int i = 0; i < numTc; i++ ) {
			start = in.nextInt();
			end = in.nextInt();
			ctr = 0;
			for ( int j = start; j <= end; j++ )
				for ( int k = j + 1; k <= end; k++ ) {
					String s = Integer.toString(j);
					s = s + s;
					if(s.contains(Integer.toString(k)))
						ctr++;
				}
			out.println("Case #"+(i+1)+": "+ctr);
		}
		
		out.close();
		in.close();
	}
}

