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 C# (Mono 4.6.2.0) (judge verdict: Wrong Answer)

using System;
using System.Linq;
namespace AtCoder_Begginer_Contest1
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] ab = Console.ReadLine().Split();
            int a = int.Parse(ab[0]);
            int b = int.Parse(ab[1]);           
            if(a > b)
            {
                b = a;
                ab[0] = ab[1];
            }
            string ans = ab[1];
            for (int i = 0; i < b-1; i++)
            {
                ans += ab[0];
            }
            Console.WriteLine(ans);
        }
    }
}