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: Wrong Answer)

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 ab = new StringBuilder();
        StringBuilder bb = new StringBuilder();

        for (int i = 0; i < b; i++) {
            ab.append(a);
        }
        for (int i = 0; i < a; i++) {
            bb.append(b);
        }
        String as = ab.toString();
        String bs = bb.toString();
        System.out.println(as + " " + bs);
        if (as.compareTo(bs) <= 0) {
            System.out.println(as);
        }
        else {
            System.out.println(bs);
        }
    }
}