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.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Scanner;


public class C {
	public static HashSet<Integer> used;
	public static void main(String[] args) throws IOException {
		PrintWriter out = new PrintWriter(new File("C.out"));
		Scanner in = new Scanner(System.in);
		int cases = in.nextInt();
		used = new HashSet<Integer>();
		for(int caseOn = 1; caseOn <= cases; caseOn++) {
			used.clear();
			int a = in.nextInt();
			int b = in.nextInt();
			
			int ans = 0;
			for(int i = a; i < b; i++) {
				if(used.contains(i))
					continue;
				int count = 0;
				ArrayList<Integer> rotations = gen(i);
				for(int t : rotations) {
					if(!used.contains(t)) {
						used.add(t);
						if(a <= t && t <= b) {
							count++;
						}
					}
				}
				count--;
				ans+=(count*(count+1))/2;
			}
			out.printf("Case #%d: %d\n",caseOn,ans);
		}
		out.close();
	}
	
	public static ArrayList<Integer> gen(int a) {
		int dig = countDigits(a);
		int ten = 1;
		for(int i = 1; i < dig; i++) {
			ten*=10;
		}
		ArrayList<Integer> ret = new ArrayList<Integer>();
		for(int i = 0; i < dig; i++) {
			if(countDigits(a)==dig)
				ret.add(a);
			a = (a%10)*ten + (a/10);
		}
		return ret;
	}
	
	public static int countDigits(int a) {
		int c = 0;
		while(a!=0) {
			c++;
			a/=10;
		}
		return c;
	}
}
/*

4
1 9
10 40
100 500
1111 2222


*/
