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 codejam;

import java.util.HashSet;

public class RecycledNumbers extends Solver {

	public static void main(String...args) {
		RecycledNumbers solver = new RecycledNumbers();
//		System.out.println(solver.solve("1 9"));
//		System.out.println(solver.solve("10 40"));
//		System.out.println(solver.solve("100 500"));
//		System.out.println(solver.solve("1111 2222"));
//		System.out.println(solver.solve("1000000 2000000"));
//		solver.solveSmallOf('C', 0);
		solver.solveLargeOf('C');
	}
	
	int a, b;
	
	@Override
	public String evaluate() {
		a = in.nextInt();
		b = in.nextInt();
		
		if(a<10) return "0";
		HashSet<Signed> set = new HashSet<Signed>();
		
		for(int i=a; i<=b; i++) {
			if(set.add(new Signed(i))) {
//				System.out.println(i + " added.");
			}
		}
		
		int c = 0;
		for(Signed s: set) {
			c+=s.getAvailablePairsCount();
		}
		
		return String.valueOf(c);
	}
	
	class Signed {
		final char[] ns;
		final int sign;
		
		Signed(int n) {
			ns = String.valueOf(n).toCharArray();
			int min = Integer.MAX_VALUE;
			for(int i=0; i<ns.length; i++) {
				if(ns[0]!='0') {
					int v = Integer.parseInt(String.valueOf(ns));
					if(v<min) min = v;
				}
				shift();
			}
			sign = min;
		}
		
		private void shift() {
			char temp = ns[0];
			int i;
			for(i=0; i<ns.length-1; i++) {
				ns[i] = ns[i+1];
			}
			ns[i] = temp;
		}
		
		public int getAvailablePairsCount() {
			int size = getSize();
			size = size * (size-1) / 2;
//			System.out.println(sign + " pairs " + size);
			return size;
		}
		
		private int getSize() {
			HashSet<Integer> cases = new HashSet<Integer>();
			for(int i=0; i<ns.length; i++) {
				if(ns[0]!='0') {
					Integer value = Integer.valueOf(String.valueOf(ns));
					if(value.intValue()>=a && value.intValue()<=b)
						cases.add(value);
				}
				shift();
			}
			return cases.size();
		}
		
		@Override
		public boolean equals(Object obj) {
			if(obj instanceof Signed) {
				return ((Signed) obj).sign==sign;
			}
			return super.equals(obj);
		}

		@Override
		public int hashCode() {
			return sign;
		}
		
	}
	
	class Pair {
		final int n, m;
		Pair(int n, int m) {
			if(n>m) {
				this.n = m;
				this.m = n;
			} else {
				this.n = n;
				this.m = m;
			}
		}
		
		@Override
		public boolean equals(Object obj) {
			if(obj instanceof Pair) {
				Pair p = (Pair) obj;
				return p.n == this.n && p.m == this.m;
			} else {
				return false;
			}
		}
		
		@Override
		public int hashCode() {
			return n*m+m;
		}
	}
}
