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 Java7 (OpenJDK 1.7.0) (judge verdict: Accepted)

//package 测试;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
public class Main {
	public static void main(String[] argv) throws IOException {
		BufferedReader f=new BufferedReader(new InputStreamReader(System.in));
		String s1=f.readLine();
		String[] s=new String[2];
		s=s1.split(" ");
		System.out.println(s[1]+s[0]);
	}
}