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 C (GCC 5.4.1) (judge verdict: Runtime Error)

#include <unistd.h>

void	ft_putstr(char *str)
{
  while(*str)
    write(1, str++, 1);
}

int		main(void)
{
  char *s;
  char *t;
  
  scanf("%s%s", s, t);
  ft_putstr(t);
  ft_putstr(s);
  return (0);
}