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 qualification;

import java.io.*;
import java.util.*;

public class C_RecycledNumbers {
  //--------------------------------------------------------------------------------
  private static String ID="C";
  private static String NAME="large";
  private static boolean STANDARD_OUTPUT=false;
  //--------------------------------------------------------------------------------
  public static void main(String[] args) throws Throwable {
    int[][] results=new int[2000001][];
    for (int i=0; i<results.length; i++) {
      int array[]=new int[8],n=0;
      String s=""+i;
      loop:for (int p=1; p<s.length(); p++) if (s.charAt(p)!='0') {
        int j=Integer.parseInt(s.substring(p)+s.substring(0,p));
        if (j<=i) continue loop;
        for (int q=0; q<n; q++) if (array[q]==j) continue loop;
        if (array.length==n) array=Arrays.copyOf(array,n*2);
        array[n++]=j;
      }
      results[i]=Arrays.copyOf(array,n);
      Arrays.sort(results[i]);
    }
    BufferedReader reader=new BufferedReader(new FileReader(new File("data/"+ID+"-"+NAME+".in")));
    if (!STANDARD_OUTPUT) System.setOut(new PrintStream(new File("data/"+ID+"-"+NAME+".out")));
    for (int c=1,T=Integer.parseInt(reader.readLine()); c<=T; c++) {
      String w[]=reader.readLine().trim().split(" +");
      int A=Integer.parseInt(w[0]),B=Integer.parseInt(w[1]);
      int count=0;
      for (int i=A; i<=B; i++) {
        // Binary Search doesn't represent an improvement
        for (int x:results[i]) if (x<=B) count++;
      }
      System.out.println("Case #"+c+": "+count);
    }
    if (!STANDARD_OUTPUT) System.out.close();
    reader.close();
  }
}
