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 Python (3.4.3) (judge verdict: Runtime Error)

N , K = map(int , input().split())
R , S , P = map(int , input().split())
T = input()

dic = {"r":"p" , "s":"r" , "p":"s"}
ANS = []

for i in range(N):
    ANS.append(dic[T[i]])
    
ans = "".join(ANS)

VANISH = []
    
for i in range(N-K):
    if ans[i] == ans[i+K]:
        VANISH.append(ans[i])
        
if N - (2*K) > 0:
    for i in range(N - (2*K)):
        if ans[i] == ans[i+(2*K)]:
            VANISH.remove(ans[i])
            
vanish = "".join(VANISH)
        
point = ((ans.count("r")-vanish.count("r"))*R + (ans.count("s")-vanish.count("s"))*S + (ans.count("p")-vanish.count("p"))*P)

print(point)