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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;

class Input {
	int a;
	int b;
	
	public Input(String line) {
		String [] arr = line.split(" ");
		a = Integer.parseInt(arr[0]);
		b = Integer.parseInt(arr[1]);
	}
	
	public String Rotate(String str) {
		char last = str.charAt(str.length()-1);
		return (last + str.substring(0,str.length()-1));
	}
	
	public int Solve() {
		int count=0;
		int numDigits = Integer.toString(a).length();
		for(int curr=a;curr<=b;curr++) {
			// For each number
			String strCurr = Integer.toString(curr);
			HashMap<String, Integer> checker = new HashMap<String, Integer>();
			
			for(int rot=1;rot<numDigits;rot++) {
				// Rotate it
				strCurr = Rotate(strCurr);
				int newNum = Integer.parseInt(strCurr);
				if(newNum > curr && newNum <= b) {
					String str = curr + "," + newNum;
					if(!checker.containsKey(str)) count++;
					checker.put(str, 0);
				}
			}
		}
		return count;
	}
}

public class Main {
	/**
	 * @param args
	 */
	public static void main(String[] args) throws IOException {
		// TODO Auto-generated method stub
		// Setup console
		BufferedReader c = new BufferedReader(new InputStreamReader(System.in));
		
		// Read number of test cases
		int numCases = Integer.parseInt(c.readLine());
		// Input
		Input [] testCases = new Input[numCases];
		for(int i=0;i<numCases;i++) {
			testCases[i] = new Input(c.readLine());
		}
		// Solve
		for(int i=0;i<numCases;i++) {
			int soln = testCases[i].Solve();
			System.out.println("Case #" + (i+1) + ": " + soln);
		}
	}
}

