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.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import java.util.StringTokenizer;


public class RecycledNumber { 
	
	public static void main(String[] args) throws NumberFormatException, IOException {
		
		File file = new File("/home/leandro/workspaces/googleCodeJam/RecycledNumbers/cases/C-small-attempt0.bin");
        BufferedReader br;
        br = new BufferedReader(new FileReader(file));
        int cases = Integer.parseInt(br.readLine());       
        for (int i = 1; i <= cases; i++) {
        	String line = br.readLine();
        	StringTokenizer tokenizer = new StringTokenizer(line);
        	Integer intA = Integer.parseInt(tokenizer.nextToken());
        	Integer intB = Integer.parseInt(tokenizer.nextToken());
        	int count = 0;
    		for (int n = intA; n <= intB; n++) {
    			for (Integer m : shift(n)) {
    				if(intA <= n && n < m && m <= intB){
    					//System.out.println(n + " - " + m);
    					count++;
    				}
    			}
    			
    		}
			System.out.println("Case #"+ i + ": " + count);
		}
		
		
		
		/*
		String A = "1111";
		String B = "2222";
		Integer intA = Integer.parseInt(A);
		Integer intB = Integer.parseInt(B);
		
		int count = 0;
		for (int n = intA; n <= intB; n++) {
			for (Integer m : shift(n)) {
				if(intA <= n && n < m && m <= intB){
					System.out.println(n + " - " + m);
					count++;
				}
			}
			
		}
		System.out.println("Total: "+ count);
		*/
	}
	
	private static Set<Integer> shift(int value){
		Set<Integer> retorno = new HashSet<Integer>();
		
		// length = 1 have no possibilities
		if(value < 10 ){
			return retorno;
		}
		String strValue = Integer.toString(value);
		
		String nextToAnalyze = strValue;
		for (int i = 1; i <= strValue.length()-1 ; i++) {
			char[] shifted = new char[nextToAnalyze.length()];
			for (int j = 0; j < nextToAnalyze.length(); j++) {
				if(j == 0){
					shifted[nextToAnalyze.length()-1] = nextToAnalyze.charAt(j);
				} else {
					shifted[j-1] = nextToAnalyze.charAt(j);
				}
			}
			nextToAnalyze = new String(shifted);
			// check for leading zeros
			if(nextToAnalyze.charAt(0) != '0'){
				retorno.add(Integer.parseInt(nextToAnalyze));
			}
		}
		return retorno;
	}
}
