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.util.ArrayList;
import java.util.List;
import java.util.Vector;

import core.ExtendedBufferedReader;
import core.Template;

public class ProblemC extends Template {

	int _numberOfCases;
	Vector<List<Integer>> _cases = new Vector<List<Integer>>();

	@Override
	public void feedData(ExtendedBufferedReader iR) {
		// TODO Auto-generated method stub

		_numberOfCases = iR.getIntFL();

		for (int i=0; i<_numberOfCases; i++){

			_cases.add(iR.getIntListFL());

		}

	}

	public String rotRight(String iData){
		return iData.charAt(iData.length()-1)+iData.substring(0,iData.length()-1);
	}

	@Override
	public StringBuffer applyMethods() {
		// TODO Auto-generated method stub

		StringBuffer aBF = new StringBuffer();

		for (int i=0; i<_cases.size(); i++){

			List<Integer> aCase = _cases.elementAt(i);

			int A = aCase.get(0);
			int B = aCase.get(1);
			int count = 0;
			
			for (int n=A; n<=B; n++){



				String repN = (new Integer(n)).toString();
				String repM = repN;
				int aSize = repN.length();

				if (aSize>1) {

					List<Integer> aMExists = new ArrayList<Integer>();
					
					for (int j=0;j<aSize;j++) {

						repM = rotRight(repM);

						int rN = new Integer(repN).intValue();
						int rM = new Integer(repM).intValue();
						
						if ((rN<rM) && (rM<=B) && (!aMExists.contains(new Integer(rM)))) {
							count++;
							aMExists.add(new Integer(rM));
							//System.out.println("n="+repN+",m="+repM);
						} 
						
					}

				}
			}
			aBF.append("Case #"+(i+1)+": "+count+"\n");

		}

		return aBF;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		new ProblemC().play(args);

	}

}
