Problem:
 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

Solution (Python):
_ = input()
S,T = input().strip().split(' ')
print(''.join(s+t for s,t in zip(S,T)))

Solution (Python):
import bisect
import cmath
import heapq
import itertools
import math
import operator
import os
import re
import string
import sys
from collections import Counter, deque, defaultdict
from copy import deepcopy
from decimal import Decimal
from fractions import gcd
from functools import lru_cache, reduce
from operator import itemgetter, mul, add, xor

import numpy as np

if os.getenv("LOCAL"):
    sys.stdin = open("_in.txt", "r")

sys.setrecursionlimit(10 ** 9)
INF = float("inf")
IINF = 10 ** 18
MOD = 10 ** 9 + 7


N = int(sys.stdin.buffer.readline())
S, T = sys.stdin.buffer.readline().decode().rstrip().split()
for c, d in zip(S, T):
    print(c + d, end='')
print()

Solution (Python):
n = int(input())
s,t = input().split()
res = ""
for i, j in zip(s, t):
    res += i + j
print(res)

Solution (Python):
N=int(input())
S,T=input().split()
for i,j in zip(S,T):
    print(i,j,sep="",end="")

Solution (Python):
a = int(input())
b, c = input().split()
for i in range(a):
  print(b[i], c[i], sep='', end='')

Solution (Python):
import itertools, heapq, bisect
from collections import defaultdict as ddic, deque, Counter

rr = raw_input
rri = lambda: int(raw_input())
rrm = lambda: map(int, raw_input().split())
MOD = 10 ** 9 + 7


N = rri()
S, T = rr().split()

ans = []
for i in xrange(N):
    ans.append(S[i])
    ans.append(T[i])
print "".join(ans)

Solution (Python):
n= int(input())
ans = ""
s,ss = map(str,input().split())
for i in range(n):
  ans += s[i]
  ans += ss[i]
print(ans)