101481: [AtCoder]ABC148 B - Strings with the Same Length

Memory Limit:256 MB Time Limit:2 S
Judge Style:Text Compare Creator:
Submit:13 Solved:13

Description

Score : $200$ points

Problem Statement

Given are strings $s$ and $t$ of length $N$ each, both consisting of lowercase English letters.

Let us form a new string by alternating the characters of $S$ and the characters of $T$, as follows: the first character of $S$, the first character of $T$, the second character of $S$, the second character of $T$, $...$, the $N$-th character of $S$, the $N$-th character of $T$. Print this new string.

Constraints

  • $1 \leq N \leq 100$
  • $|S| = |T| = N$
  • $S$ and $T$ are strings consisting of lowercase English letters.

Input

Input is given from Standard Input in the following format:

$N$
$S$ $T$

Output

Print the string formed.


Sample Input 1

2
ip cc

Sample Output 1

icpc

Sample Input 2

8
hmhmnknk uuuuuuuu

Sample Output 2

humuhumunukunuku

Sample Input 3

5
aaaaa aaaaa

Sample Output 3

aaaaaaaaaa

Input

题意翻译

给你长度为 $n(n\le 100)$ 的 $2$ 个字符串 $S,T$ 。 请你按照 $S_1,T_1,S_2,T_2,...,S_n,T_n$ 的顺序输出。

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