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 <stdio.h>

int main(void)
{
	int n, countABC;
	char s[51];
	int i;
	
	scanf("%d", &n);
	scanf("%s", s);
	
	countABC = 0;

	/* n文字目にCが入る場合までを調べるので、ループはn-2回 */
	for (i = 0; i < n - 2; i++)
	{
		if ((s[i] == 'A') && (s[i + 1] == 'B') && (s[i + 2] == 'C'))
		{
			countABC++;
		}
	}

	printf("%d", countABC);

	return 0;
}