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 JavaScript (node.js v5.12) (judge verdict: Wrong Answer)

function Main(input) {
  input = input.split(" ");
  a = input[0];
  b = input[1];
  ab = '';
  ba = '';
  for (i = 0; i < a; ++i) {
    ab += b;
  }
  for (i = 0; i < b; ++i) {
    ba += a;
  }
  ar = [ab, ba];
  ar.sort();
  console.log(ar[0]);
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));