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: Runtime Error)

program main;
var a,b,k :integer;
 
begin 
readln(a,b,k);
repeat 
repeat 
if (a>=1) then begin a:=a-1;k:=k-1;end;
until (a=0)or (k=0);
if (a=0) and (b>=1) then begin b:=b-1;k:=k-1;end;
until (k=0); 
 
writeln(a,b);
 
end.