import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}


import java.io.*;
import java.util.*;

public class QualC{		
		
		private BufferedReader in;	
		private StringTokenizer st;
		private PrintWriter out;
		
		String rotate(String x){
			return x.substring(1)+x.charAt(0);
		}
		void solve() throws IOException{
			long t = System.currentTimeMillis();
			int size = 2000001;
			ArrayList<Integer>[]count = new ArrayList[size];
			for (int i = 0; i < count.length; i++) {
				count[i] = new ArrayList<Integer>();
			}
			for (int i = 10; i < count.length; i++) {
				String m = i+"";
				String n = m;
				do{
					n = rotate(n);
					if(n.charAt(0) != '0' && Integer.parseInt(n) < i){
						count[i].add(Integer.parseInt(n));
					}
				}while(!n.equals(m));
				
			}
			System.out.println(System.currentTimeMillis()-t);
			int kases = nextInt();
			int kase = 0;
			while(kases-->0){
				kase++;
				out.print("Case #"+kase+": ");
				int a = nextInt();
				int b = nextInt();				
				int ans = 0;
				for (int i = a+1; i <= b; i++) {
					for (int j = 0; j < count[i].size(); j++) {
						if(count[i].get(j)>=a) ans++;
					}
				}
//				for (int n = a; n <= b; n++) {
//					for (int m = n+1; m <= b; m++) {
//						String x = n+"";
//						String y = m+"";
//						if(x.length() != y.length()) continue;
//						String z = x+x;
//						if(z.contains(y)) ans++;
//					}
//				}
				out.println(ans);				
			}
		}
			

		QualC() throws IOException {
			in = new BufferedReader(new FileReader("input.txt"));	
			out = new PrintWriter(new FileWriter("output.txt"));
			eat("");
			solve();	
			out.close();
		}

		private void eat(String str) {
			st = new StringTokenizer(str);
		}

		String next() throws IOException {
			while (!st.hasMoreTokens()) {
				String line = in.readLine();
				if (line == null) {
					return null;
				}
				eat(line);
			}
			return st.nextToken();
		}

		int nextInt() throws IOException {
			return Integer.parseInt(next());
		}

		long nextLong() throws IOException {
			return Long.parseLong(next());
		}

		double nextDouble() throws IOException {
			return Double.parseDouble(next());
		}

		public static void main(String[] args) throws IOException {
			new QualC();
		}

		int gcd(int a,int b){
			if(b>a) return gcd(b,a);
			if(b==0) return a;
			return gcd(b,a%b);
		}

}
