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.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;

public class RecycledPair {
	public static void main(String[] args) {

		try {

			BufferedReader br = new BufferedReader(new FileReader("input.txt"));
			BufferedWriter bw = new BufferedWriter(new FileWriter("output.txt"));
			int N;
			N = Integer.parseInt(br.readLine());
			int k,i;
			HashSet<Integer> set;
			for (k = 0; k < N; k++) {
				
				String[] line = br.readLine().split(" ");
				int A = Integer.parseInt(line[0]);
				int B = Integer.parseInt(line[1]);
				int counter = 0;
				
				for (i = A; i < B; i++) {
					
					set = new HashSet<Integer>();
					updateSet(set, i);
					counter += count(set,i,B);
					
				}
				bw.write("Case #" + (k+1) + ": " + counter);
				bw.newLine();
				// showSet(set);
			}

			br.close();
			bw.close();

		} catch (IOException io) {
		}

	}

	private static void updateSet(HashSet<Integer> set, int num) {

		String numStr = num + "";
		char[] numChar = numStr.toCharArray();

		int i, j;

		for (i = numChar.length - 1; i >= 1; i--) {

			if (numChar[i] != '0') {

				char[] newNum = new char[numChar.length];
				j = i;
				int counter = 0;
				newNum[counter] = numChar[j];
				counter++;
				while (counter < numChar.length) {
					if (j < numChar.length - 1) {
						j++;
					} else {
						j = 0;
					}
					newNum[counter] = numChar[j];
					counter++;
				}
				set.add(Integer.parseInt(new String(newNum)));
			}
		}
		set.add(num);
	}
	
	private static int count(HashSet<Integer> set, int low, int high){
		int count = 0;
		for(Integer s:set)
			if(s>low && s<=high) count++;
		return count;
	}
}
