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;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace AltCoder
{
    public sealed class Begineer149
    {
        public static void Main()
        {
            long[] ABK = Console.ReadLine().Split(new char[] { ' ' }).Select(x => Convert.ToInt64(x)).ToArray();
            long A = ABK[0], B = ABK[1], k = ABK[2];

            long min = Math.Min(A, k);
            A = A - min;
            k = min;
            B = Math.Max(0, B - k);

            Console.WriteLine($"{A} {B}");
        }
    }
}