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 problemC;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.StringTokenizer;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("C-large.in"));
		FileWriter fw = new FileWriter("C-large.out");
		int T = new Integer(in.readLine());
		for (int cases = 1; cases <= T; cases++){
			StringTokenizer st=new StringTokenizer(in.readLine());
			int A = new Integer(st.nextToken());
			int B = new Integer(st.nextToken());
			int num_bits = 0;
			long result = 0;
			int tempn = B;
			HashSet<Integer> hs = new HashSet<Integer>();
			while (tempn > 0){
				num_bits++;
				tempn = tempn/10;
			}
			
			if (num_bits == 1) {
				result = 0;
			}else {
				for (int target = A; target <= B; target++){
					
					if(!hs.contains(target)){
					int temp = target;
					int p = 1;
					int bit = 0;
					for (int t = 1 ; t < num_bits; t++){
						bit = temp % 10;
						temp = temp/10;
						if (bit != 0){
							temp = temp + (int) (bit * Math.pow(10, num_bits-1));
							if ((temp >= A) && (temp <= B) && (temp!=target)&&(!hs.contains(temp))){
								hs.add(target);
								hs.add(temp);
								p++;
							}
						}
					}
					
					result = result + (p*(p-1))/2;
					}
				}
			}
			
			if (cases != T) {fw.write("Case #" + cases + ": "+ result + "\n");
			}
			else {fw.write("Case #" + cases + ": "+ result);}
		}
		fw.flush();
		fw.close();
	}
}
