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 9.2.1) (judge verdict: Accepted)

#include<stdio.h>
int main(void)
{
    char s[101],t[101],u[201];
    int i=0,j=0;
    scanf("%s%s",s,t);
    while(t[i]!='\0'){
        u[i]=t[i];
        i++;
    }
    while(s[j]!='\0'){
        u[i]=s[j];
        i++;
        j++;
    }
    u[i]='\0';
    printf("%s\n",u);
    return 0;
}