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 Fortran (GNU Fortran 9.2.1) (judge verdict: Accepted)

program main
	implicit none
    character(100)::s,t
    integer::lens,lent
    read(*,*) s,t
    lens=len_trim(s)
    lent=len_trim(t)
    write(*,*) t(1:lent)//s(1:lens)
    stop
end program main