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
  c : char;
  s, t : string;

begin
  c := 'A';
  s := ''; t := '';
  while c <> ' ' do begin
    read(c);
    if c <> ' ' then
      s := s + c;
  end;
  while not eoln do begin
    read(c);
    t := t + c;
  end;
  writeln(t + s);
end.