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.*;
import java.util.Collections;

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