Problem:
Score : 200 points

Problem Statement

Given are 1-digit positive integers a and b. Consider these two strings: the concatenation of b copies of the digit a, and the concatenation of a copies of the digit b. Which of these is lexicographically smaller?

Constraints

1 \leq a \leq 9

1 \leq b \leq 9

a and b are integers.

Input

Input is given from Standard Input in the following format:

a b

Output

Print the lexicographically smaller of the two strings. (If the two strings are equal, print one of them.)

Sample Input 1

4 3

Sample Output 1

3333

We have two strings 444 and 3333. Between them, 3333 is the lexicographically smaller.

Sample Input 2

7 7

Sample Output 2

7777777

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.*;

public class Main {
		public static void main(String[] args) {
			
			Scanner sc = new Scanner(System.in);
			
			int a = sc.nextInt();
			int b = sc.nextInt();
			
	 StringBuilder A = new StringBuilder();
	 StringBuilder B = new StringBuilder();
	 
	 for(int i=0; i<b; i++) {
		   A.append(a);
	 }
	 for(int i=0; i<a; i++) {
		   B.append(b);
	 }
	 if(a<b) {
		 System.out.println(A);
	 }else {
		 System.out.println(B);
	 }
			
		}
}