Problem:
Score : 100 points

Problem Statement

Given are two strings S and T consisting of lowercase English letters. Concatenate T and S in this order, without space in between, and print the resulting string.

Constraints

S and T are strings consisting of lowercase English letters.

The lengths of S and T are between 1 and 100 (inclusive).

Input

Input is given from Standard Input in the following format:

S T

Output

Print the resulting string.

Sample Input 1

oder atc

Sample Output 1

atcoder

When S = oder and T = atc, concatenating T and S in this order results in atcoder.

Sample Input 2

humu humu

Sample Output 2

humuhumu

Solution in C# (Mono 4.6.2.0) (judge verdict: Runtime Error)

using System;

namespace AtCoder
{
    class Program
    {
        static void Main()
        {
            int x = int.Parse(Console.ReadLine());

            int xx = x;
            int result = 0;
            bool found = false;

            while (!found)
            {
                int check = 0;
                for(int i = 1; i < xx; i++)
                {
                    if ( xx % i == 0)
                    {
                        check++;
                    }
                }
                
                if(check == 1)
                {
                    found = true;
                    result = xx;
                }
                else
                {
                    xx++;
                }

            }

            Console.WriteLine(result);

        }
    }
}