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 Pascal (FPC 3.0.4) (judge verdict: Accepted)

program main;
var 
    a, b, c : string;
    i : integer;
begin
    readln(a);
    for i := 1 to length(a) do 
        if a[i] = ' ' then 
            begin 
                b := copy(a,1,i-1);
                c := copy(a,i+1,(length(a)-i));
            end;
    writeln(c,b);
end.