import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class Main {

//	static int MAX = 10000;
	static int MAX = 2000000;
	static Object[] All = new Object[MAX+1];
	
	static int size( int x ) {
		if(x>999999) return 7;
		if(x>99999)  return 6;
		if(x>9999)   return 5;
		if(x>999)    return 4;
		if(x>99)     return 3;
		if(x>9)      return 2;
		return 1;
	}
	static int[] rotate( int value ) {
		List<Integer> result = new ArrayList<Integer>();
		int[] V = new int[8];
		int s = size(value);
		int x = value;
		
		for(int i=s-1;i>=0;i--) {
			V[i] = x%10;
			x /=10;
		}
		int rot;
		for(int i=1; i<s; i++) {
			if(V[i]!=0){
				rot=0;
				for(int j=0,ii=i;j<s; j++,ii=(ii+1)%s){
					rot=rot*10+V[ii];
				}
				if(rot>value && !result.contains(rot))
					result.add(rot);
			}
		}
		if( result.isEmpty() )
			return null;
		int[] r = new int[result.size()];
		for(int i=0; i<r.length; i++)
			r[i]=result.get(i);
		return r;
	}
	
	static void precalculate() {
		for(int i=1; i<=MAX; i++){
			All[i] = rotate(i);
		}
	}
	static int solve( Scanner in ) {
		int A, B, sol=0;
		
		A = in.nextInt();
		B = in.nextInt();

		for( int i=A; i<=B; i++) {
//			List<Integer> result = rotate(i);
			if( All[i]!=null ) {
				for(int value: (int[])All[i] ) {
					if( value <= B )
						sol++;
				}
			}
		}

		return sol;
	}
	
	public static void main ( String args[] ) {
		int T; 
		Scanner in = new Scanner(System.in);
		T = in.nextInt();
		int cnt=0;
		int sol;
		precalculate();
		for( cnt=1; cnt<=T; cnt++ ) {
			sol = solve( in );
			System.out.printf("Case #%d: %d\n", cnt, sol);
		}

	}
}

package ggpackage;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStreamReader;
import java.util.ArrayList;


public class GgClass {


	private static String[] txt;
	private static String newtxt="";
	private static String oldtxt="";
	private static String[] oldtxt2;

	private static int numberC;


	public static void main(String[] args) throws FileNotFoundException {

		try{
			FileInputStream fstream = new FileInputStream("C-large.in");
			DataInputStream in = new DataInputStream(fstream);
			BufferedReader br = new BufferedReader(new InputStreamReader(in));
			String strLine;
			while ((strLine = br.readLine()) != null)   {
				oldtxt+=strLine+"\n";
			}
			in.close();
		}catch (Exception e){//Catch exception if any
			System.err.println("Error: " + e.getMessage());
		}
		oldtxt2=oldtxt.split("\n");
		numberC = Integer.parseInt(oldtxt2[0]);
		ArrayList dub = new ArrayList();
		for(int L=1;L<=numberC;L++){
			int A = Integer.parseInt(oldtxt2[L].split(" ")[0]);
			int B = Integer.parseInt(oldtxt2[L].split(" ")[1]);
			int count = 0;
			//loop from A to mid point
			if(B<10){}else{
				for(int i=A;i<=B;i++){

					txt = String.valueOf(i).split("");
					//check for possible combination of an integer
					for(int k=2;k<txt.length;k++){
						newtxt+=txt[k];
						for(int j=1;j<txt.length-1;j++){
							if(j+k>txt.length-1){
								newtxt+=txt[j+k-(txt.length-1)];
							}else{
								newtxt+=txt[j+k];
							}
						}

						while(newtxt.startsWith("0")==true){
							newtxt=newtxt.substring(1);
							//System.out.print(newtxt+"\n");
							//count if an integer is recyclable
						}

						if(newtxt.isEmpty()){}else{
							if(Integer.parseInt(newtxt)>i){
								//System.out.print(newtxt+"\n");
								if(Integer.parseInt(newtxt)<=B){
									count++;
									dub.add(newtxt);
								}


							}
							newtxt="";
						}
						if(dub.size()==0){}else{
							
						for(int z=0;z<=dub.size()-1;z++){
							for(int y=z+1;y<=dub.size()-1;y++){
								if(dub.get(z).toString().contentEquals((dub.get(y).toString()))){
									count=count-1;
									
								}
							}
						}
						}

						
						
					}
					
					dub.clear();
				}
				
			}
			System.out.print("Case #"+L+": "+count+"\n");
		}
	}
}
