Problem:


Score : 200 points

Problem Statement

You are given a string s consisting of lowercase English letters. Extract all the characters in the odd-indexed positions and print the string obtained by concatenating them. Here, the leftmost character is assigned the index 1.

Constraints

Each character in s is a lowercase English letter.

1≤|s|≤10^5

Input

The input is given from Standard Input in the following format:

s

Output

Print the string obtained by concatenating all the characters in the odd-numbered positions.

Sample Input 1

atcoder

Sample Output 1

acdr

Extract the first character a, the third character c, the fifth character d and the seventh character r to obtain acdr.

Sample Input 2

aaaa

Sample Output 2

aa

Sample Input 3

z

Sample Output 3

z

Sample Input 4

fukuokayamaguchi

Sample Output 4

fkoaaauh



Sample input:
atcoder


Sample output:
acdr

Submission status: Accepted

Solution code:
s = input()
res = s[0]

for i in range(len(s)):
    if i>0:
        if i%2==0:
            res += s[i]
print(res)

Submission status: Accepted

Solution code:
s = input()
print(''.join([c for i, c in enumerate(s) if i%2==0]))

Submission status: Accepted

Solution code:
s = str(input())

ss = ""
for i in range(len(s)):
	if (i +1)%2 != 0:
		ss += s[i]
print(ss)

Submission status: Accepted

Solution code:
# coding: utf-8
# Your code here!
s = input()
for i in range(0, len(s), 2):
    print(s[i], end="")
print()

Submission status: Accepted

Solution code:
s=input()
for c in range(0,len(s),2):
	print(s[c],end="")
print()

Submission status: Accepted

Solution code:
s=input()
outp=""
for i in range(0,len(s),2):
    outp+=s[i]
print(outp)

Submission status: Accepted

Solution code:
s = input()
n = len(s)
i = 0
ans = []
while i < n:
	ans.append(s[i])
	i += 2
e = len(ans)
for i in range(e):
	if i != e-1:
		print(ans[i],end = '')
	else:
		print(ans[i])

Submission status: Accepted

Solution code:
s = input()
for i in range(len(s)):
    if i % 2 == 0:
        print(s[i],end = "")

Submission status: Accepted

Solution code:
s=input()
a=""
for i in range(len(s)):
    if i%2==0:
        a=a+s[i]
print(a)

Submission status: Accepted

Solution code:
l=input()
n=(len(l)+1)//2
odd=""
for i in range(n):
  odd+=l[2*i]
print(odd)

Submission status: Accepted

Solution code:
s=input()
outp=""
for i in range(0,len(s),2):
  outp+=s[i]
print(outp)

Submission status: Accepted

Solution code:
s = input()

ss = ""
for i in range(len(s)):
    if (i + 1) % 2 == 1:
        ss += s[i]

print(ss)

Submission status: Accepted

Solution code:
s=input()
a = []
for i in range(0,len(s),2):
    a.append(s[i])
print("".join(a))

Submission status: Accepted

Solution code:
s = input()
s_add = ""
for i in range(len(s)):
  if i % 2 == 0:
    s_add = s_add + s[i]
print(s_add)

Submission status: Accepted

Solution code:
x = input()
print(x[::2])

Submission status: Accepted

Solution code:
str = input()
print(str[::2])

Submission status: Accepted

Solution code:
s = input()
t = ""
for i in range(len(s)):
    if i % 2 == 0:
        t += s[i]
print(t)

Submission status: Accepted

Solution code:
S=list(input())

Ts=""
for i in range(len(S)):
    if i%2==0:
        Ts+=S[i]

print(Ts)

Submission status: Accepted

Solution code:
s = input()
ans = '' 
for i in range(len(s)):
    if i % 2 == 0:
        ans += s[i]

print(ans)

Submission status: Accepted

Solution code:
s=input()
for i,c in enumerate(s):
    if i%2==0: print(c,end="")
print()

Submission status: Accepted

Solution code:
s = input()
print(''.join([s[i] for i in range(len(s)) if i%2 == 0]))

Submission status: Accepted

Solution code:
import numpy as np
import pdb

def main():
    mystring = np.array(list(raw_input()))
    oddstr = oddstring(mystring)
    oddstr = ''.join(oddstr)
    print oddstr

def oddstring(mystring):
    stringsize = len(mystring)
    oddindices = range(0,stringsize, 2)
    oddstr = mystring[oddindices]
    return oddstr

if __name__ == '__main__':
    main()

Submission status: Accepted

Solution code:




print(input()[::2])

Submission status: Accepted

Solution code:
s=input()

l=[]
for i in range(len(s)):
    if(i%2==0):
        l.append(s[i])
ss="".join(l)
print(ss)

Submission status: Accepted

Solution code:
s=list(input())
ans=""
for i in range(0,len(s),2):
    ans+=s[i]
print(ans)

Submission status: Accepted

Solution code:
a=input().strip()
b=''
for i in range(0,len(a),2):
  b=b+a[i]
print(b)

Submission status: Accepted

Solution code:
s=input()
print(''.join([c for i,c in enumerate(s) if i%2==0]))

Submission status: Accepted

Solution code:
s=input()
b=len(s)

c=0

for i in range(b):
    if i%2==0:
        c=str(c)+str(s[i])

print(c[1:])

Submission status: Accepted

Solution code:
# -*- coding: utf-8 -*-

s = input()
sList = list(s)

output = ""

for i in range(len(sList)):
    if i%2 == 0:
        output += sList[i]

print(output)

Submission status: Accepted

Solution code:
s=input();s_list=list(s);ans=''
for i in range(1,int(len(s_list)/2)+1):
    del s_list[i]
for i in s_list:
    ans += i
print(ans)

Submission status: Accepted

Solution code:
#!/usr/bin/env python

s = input()
for i in range(len(s)):
    if i % 2 == 0:
        print(s[i], end="")
print()

Submission status: Accepted

Solution code:
a = input()
p = str()
for i in range(len(a)):
    if i % 2 == 0:
        p += a[i]
print(p)

Submission status: Accepted

Solution code:
s = input()
a =''
for i in range(len(s)):
	if i % 2 == 0:
		a += s[i]
		
print(a)

Submission status: Accepted

Solution code:
s = input()
s_list = list(s)

ans = [j for i,j in enumerate(s_list) if (i%2) == 0]
print(''.join(ans))

Submission status: Accepted

Solution code:
s = input()
a = ""
for i in range(len(s)):
    if(i % 2 == 0):
        a += s[i]
print(a)

Submission status: Accepted

Solution code:
s = raw_input()
print s[::2]

Submission status: Accepted

Solution code:
s = input()
print("".join([s[i] for i in range(0, len(s), 2)]))

Submission status: Accepted

Solution code:
value = input()

array = []
for i in range(0, len(value)):
    if i%2 == 0:
        array.append(value[i])
print("".join(array))

Submission status: Accepted

Solution code:
x = ""
s = input()
for i in range(len(s)):
 if i % 2 == 0:
  x = x + s[i]
print(x)

Submission status: Accepted

Solution code:
s=input()
i=0
a=""
while i<len(s):
 a+=s[i]
 i+=2
print(a)

Submission status: Accepted

Solution code:
s = input()
s2 = ''
for i in range(len(s)):
    if (i % 2 == 0):
        s2 += s[i]

print(s2)

Submission status: Accepted

Solution code:
s = list(input())
n = len(s)
ans = ""
for i in range(0, n, 2):
    ans += s[i]
print(ans)

Submission status: Accepted

Solution code:
s = raw_input()
print "".join(s[i] for i in xrange(len(s)) if i%2 == 0)

Submission status: Accepted

Solution code:
s = raw_input("")
print s[::2]

Submission status: Accepted

Solution code:
#!/usr/bin/env python3
# -*- coding: utf-8 -*-



def main():
    S = input()
    print(S[::2])

if __name__ == "__main__": main()

Submission status: Accepted

Solution code:
def B_OddString():
    try:
        LOCAL_FLAG
        s = "a"
    except NameError:
        s = input()

    for i in range(0,len(s),2):
        print(s[i], end='')


B_OddString()

Submission status: Accepted

Solution code:
s = input()
ans = ''
count = 0
while True:
    ans += s[count]
    count += 1
    if len(s) == count:
        break
    count += 1
    if len(s) == count:
        break

print(ans)

Submission status: Accepted

Solution code:
n = list(input())
for i in range(len(n)):
    if i%2 == 0: print(n[i],end="")
print()

Submission status: Accepted

Solution code:
s=str(input())
L=len(s)
ans=''
for i in range(0,L,2):
    ans += s[i]

print(ans)

Submission status: Accepted

Solution code:
st=input()
s=""
for i in range(0,len(st)):
    if i % 2 ==0:
        s+=str(st[i])
    else:
        pass
print(s)

Submission status: Accepted

Solution code:
def main():
    print(''.join([c for c in input()[::2]]))


if __name__ == "__main__":
    main()

Submission status: Accepted

Solution code:
s = input()

for i , t in enumerate(s):
  if i%2 == 0:
    print(t,end = "")
print()

Submission status: Accepted

Solution code:
s = input()
for i in range(0, len(s), 2):
    print(s[i], end='')
print()

Submission status: Accepted

Solution code:
string = input()
answer = [character for i, character in enumerate(string) if i%2 == 0]
for character in answer:
    print(character, end="", sep="")

Submission status: Accepted

Solution code:
if __name__ == '__main__':
    S = input()
    ans = ""
    n = len(S) - int(len(S)/2)
    for i in range(n):
        ans += S[2*i]
    print(ans)

Submission status: Accepted

Solution code:
s = input()
for i in range((len(s)+1)//2):
  print(s[2*i], end="")
print("")

Submission status: Accepted

Solution code:
string = input()
size = len(string)
out = ""
for i in range(size):
    if i % 2 == 0:
        out += string[i]
print(out)

Submission status: Accepted

Solution code:
a=raw_input()
t=''
for i in range(0,len(a)):
 t+="" if i%2 else a[i]
print t

Submission status: Accepted

Solution code:
S = input()
t = ""
for i in range(0, len(S), 2):
  t = t + S[i]

print(t)

Submission status: Accepted

Solution code:
s = list(input())


for i in range(len(s)):
    if i%2==0:
        print(s[i],end='')

print()

Submission status: Accepted

Solution code:
import math,string,itertools,fractions,heapq,collections,re,array,bisect,sys,random,time,copy,functools

sys.setrecursionlimit(10**7)
inf = 10**20
eps = 1.0 / 10**10
mod = 10**9+7

def LI(): return [int(x) for x in sys.stdin.readline().split()]
def LI_(): return [int(x)-1 for x in sys.stdin.readline().split()]
def LF(): return [float(x) for x in sys.stdin.readline().split()]
def LS(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def F(): return float(sys.stdin.readline())
def S(): return input()


def main():
    s = S()

    return s[::2]


print(main())

Submission status: Accepted

Solution code:
s = input()
ans = ""
n = len(s)
for i in range(len(s)):
    if i % 2 == 0:
        ans = ans + s[i]
print(ans)

Submission status: Accepted

Solution code:
s = input()
t = [s[i] for i in range(0, len(s), 2)]
print(''.join(t))

Submission status: Accepted

Solution code:
def main():
    S =  input()
    #print(S)
    #print(S[1])
    #print(t)
    
    string = "".join( [S[i] for i in range(0, len(S), 2)] )
    print(string)
    
    
if __name__=="__main__":
    main()

Submission status: Accepted

Solution code:
from collections import defaultdict
from itertools import product, groupby
from math import pi
from collections import deque
from bisect import bisect, bisect_left, bisect_right
INF = 10 ** 10


def main():
    s = input()
    print(s[::2])


if __name__ == '__main__':
    main()

Submission status: Accepted

Solution code:
# -*- encoding: utf-8 -*-
s = input().rstrip()

print(s[::2])

Submission status: Accepted

Solution code:
s = input() 
print(s[::2])

Submission status: Accepted

Solution code:
s = input()
for i in range(len(s)):
    if (i % 2) == 0:
        print(s[i], end="")
print()

Submission status: Accepted

Solution code:
def main():
    print(input()[::2])

if __name__ == '__main__':
    main()

Submission status: Accepted

Solution code:
# coding: utf-8
# Here your code !
str =""
i =1
for j in input():
    if i%2==1:
        str+=j
    i+=1
print(str)

Submission status: Accepted

Solution code:
def oddOut():
    s = str(input())
    print(s[::2])
oddOut()

Submission status: Accepted

Solution code:
#文字列を読み込む
str = input()
#文字列から奇数文字を取り出す
kisuu_str = ""
for i in range(0,len(str),2):
    kisuu_str += str[i]
#奇数文字のみを表示する
print(kisuu_str)

Submission status: Accepted

Solution code:
s = input()
t = len(s)
for i in range(0,t,2) :
    print (s[i] , end='')

Submission status: Accepted

Solution code:
s = input()
t = len(s)
for i in range(0,t,2) :
    print (s[i] , end='')
    
print()

Submission status: Accepted

Solution code:
s = str(raw_input())
lst = []
for i in range(len(s)):
    if i % 2 == 0:
        lst.append(s[i])
print ''.join(lst)

Submission status: Accepted

Solution code:
S = input()
t = 0
i = 0
A=[]

while t< len(S):
    A.append(S[t])
    i+=1
    t+=2
a="".join(A)
print(a)

Submission status: Accepted

Solution code:
# -*- coding:utf-8 -*-
s = list(input())
a = [ s[tmp] for tmp in range(len(s)) if tmp%2 == 0 ]
print(''.join(a))

Submission status: Accepted

Solution code:
s = str(input())
print(s[::2])

Submission status: Accepted

Solution code:
s = input()
ans = s[0:100000:2]
print(ans)

Submission status: Accepted

Solution code:
s=input()
x=list(s)
out=""
for i in range(len(x)):
	if i % 2 ==0:
		out+=x[i]
print(out)

Submission status: Accepted

Solution code:
print "".join([c for i,c in enumerate(raw_input()) if i % 2 == 0])

Submission status: Accepted

Solution code:
print "".join(map(str, [c for i,c in enumerate(raw_input()) if i % 2 == 0]))

Submission status: Accepted

Solution code:
import sys

word = raw_input()
odd = ''
index = 1

for letter in word:
    if (index % 2) != 0:
        odd += letter
    index += 1

print odd

Submission status: Accepted

Solution code:
input_line1 = str(input())
c = 1
p = ""
for v in input_line1:
    if c == 1:
        p += v
        c = 0
    else:
        c += 1
print(p)

Submission status: Accepted

Solution code:
if __name__ == '__main__':
    STR = input()
    ans = ''
    for i in range(0, STR.__len__(), 2):
        ans += STR[i:i+1]
    print(ans)

Submission status: Accepted

Solution code:
s = input()
l = len(s)
for i in range(l):
  if i % 2 == 0:
    print(s[i], end='')

Submission status: Accepted

Solution code:
# -*- coding: utf-8 -*-

print(input()[::2])

Submission status: Accepted

Solution code:
s=input()
ans=""
for i,word in enumerate(s):
    if i%2==0:
        ans+=word
print(ans)

Submission status: Accepted

Solution code:
s = input();print(s[::2]);

Submission status: Accepted

Solution code:
#ABC072B

s=raw_input()
res=''
for i in xrange(len(s)):
 if i%2==0:
  res+=s[i]
print res

Submission status: Accepted

Solution code:
# -*- coding: utf-8 -*-
"""

"""



if __name__ == '__main__':
    txt = input()
    result = txt[::2]
    print(result)

Submission status: Accepted

Solution code:
print("".join([j for i,j in enumerate(input()) if i%2==0]))

Submission status: Accepted

Solution code:
s = input()
hoge =list(s)

moji = ''

for num in range(len(s)):
    if num%2 == 0:
        moji += hoge[num]
    continue

print(moji)

Submission status: Accepted

Solution code:
a = raw_input().strip()
ans = ''
counter = 1
for x in a:
	if counter % 2 == 1:
		ans += x
	counter += 1
print(ans)

Submission status: Accepted

Solution code:
a=raw_input()
b=list(a)
c=1
ans=""
for i in b:
  if c%2==1:
    ans+=i
  c+=1
print ans

Submission status: Accepted

Solution code:
s = raw_input()

ans = ""

for i in range(len(s)):
    if ((i + 1) % 2) != 0:
        ans += s[i]

print ans

Submission status: Accepted

Solution code:
input_line1 = raw_input()
extract1 = input_line1[::2]
print(extract1)

Submission status: Accepted

Solution code:
st = str(input())
result = [st[i] for i in range(len(st)) if i%2 == 0]
print("".join(result))

Submission status: Accepted

Solution code:
s = input()
for i, e in enumerate(s):
    if i % 2 == 0:
        print(e, end="")
print("")

Submission status: Accepted

Solution code:
s=input()
r=""
for i in range(len(s)):
    if i%2==0:
        r+=s[i]
print(r)

Submission status: Accepted

Solution code:
import sys
retsu = list(input())
n = len(retsu)
if n%2== 1:
    a = n // 2 + 1
    for i in range(a):
        sys.stdout.write(retsu[i*2])
else:
    a = n // 2
    for i in range(a):
        sys.stdout.write(retsu[i*2])

Submission status: Accepted

Solution code:
def b():
    s = input()
    print(s[::2])

b()

Submission status: Accepted

Solution code:
S = input()

a = ""

for i in range(0, len(S), 2):
    a = a + S[i]

print(a)

Submission status: Accepted

Solution code:
s=input()
l=[x for x in s[::2]]
print("".join(l))

Submission status: Accepted

Solution code:
#coding:utf-8

string = input()

res = ""
for i, char in enumerate(string):
    if i % 2 == 0:
        res += char
print (res)

Submission status: Accepted

Solution code:
import sys

def main():
    S = sys.stdin.readline()[:-1]
    print(S[::2])

if __name__ == '__main__':
    main()

Submission status: Accepted

Solution code:
#!/usr/bin/env python

s=map(str,input().strip())
ans=''
for num,moji in enumerate(s):
    if num%2==0:
        ans+=moji

print(ans)

Submission status: Accepted

Solution code:
myinput=input()
print(myinput[::2])

Submission status: Accepted

Solution code:
s = input()
ans = ""
for i in range(len(s)):
  if(i % 2 == 0):
    ans = ans + s[i]
    
print(ans)

Submission status: Accepted

Solution code:
import sys
a = sys.stdin.readline().strip()
print (a[::2])

Submission status: Accepted

Solution code:
s = input()

for i,c in enumerate(s):
  if i % 2 == 0:
    print(c, end="")

Submission status: Accepted

Solution code:
a = raw_input()
s = ""
for i in range(0, len(a), 2 ):
	s = s + a[i]
print s

Submission status: Accepted

Solution code:
s = input()
t = 0
for i,j in enumerate(s):
   if i % 2 == 0:
      print(s[i],end="")

Submission status: Accepted

Solution code:
import sys

# sys.stdin = open('b1.in')


def read_int_list():
    return list(map(int, input().split()))


def read_str_list():
    return input().split()


def read_int():
    return int(input())


def read_str():
    return input()


def main():
    s = read_str()
    res = s[0::2]
    print(res)


main()

Submission status: Accepted

Solution code:
def read_line(*types): return [f(a) for a, f in zip(input().split(), types)]

s, = read_line(str)

for i in range(len(s)):
    if i % 2 == 0:
        print(s[i], end='')

Submission status: Accepted

Solution code:
def getStrangeString(s):
    res = ""
    for i in range(len(s)):
        if i%2 == 0:
            res += s[i]
    return res
print(getStrangeString(input()))

Submission status: Accepted

Solution code:
S = input()
print(S[0:len(S):2])

Submission status: Accepted

Solution code:
s=input()
for i in range(len(s)):
    if i%2==0:
        print(s[i],end="")
print()

Submission status: Accepted

Solution code:
s = input()
a = ""

for i in range(0,len(s),2):
    a = a+s[i]
    
print(a)

Submission status: Accepted

Solution code:
a=input()
count = 1
li=[]
for char in list(a):
    if count % 2 != 0:
        li.append(char)
        count+=1
    else:
        count+=1
b="".join(li)
print(b)

Submission status: Accepted

Solution code:
S = input()
arr = []
for i in range(len(S)):
    if i%2 == 0:
        arr.append(S[i])
print(''.join(arr))

Submission status: Accepted

Solution code:
str = input()
print (str[::2])

Submission status: Accepted

Solution code:
S = input()

result = ""

for i in range(len(S)):
    if i % 2 == 0:
        result += S[i]

print(result)

Submission status: Accepted

Solution code:
# problem B
s = input()
n = len(s)

out = ""
for i in range(0, n, 2):
    out += s[i]
print(out)

Submission status: Accepted

Solution code:
s = input()
line = s[::2]
print(line)

Submission status: Accepted

Solution code:
def solve():
    s = input()
    S = s[::2]
    print(S)

if __name__ == '__main__':
    solve()

Submission status: Accepted

Solution code:
s=list(raw_input())

A=''
for i in range(len(s)):
	if i%2==0:
		A+=s[i]

print A

Submission status: Accepted

Solution code:
S = input()
ans=[]
for i in range(len(S)):
    if i % 2 == 0:
        ans.append(S[i])
print("".join(ans))

Submission status: Accepted

Solution code:
#!/usr/bin/python

import sys

def main(argv):
    for line in sys.stdin:
        output = []
        for i, c in enumerate(line.rstrip("\n")):
            if i % 2 == 0:
                output.append(c)
        print("".join(output))

if __name__ == "__main__":
    main(sys.argv)

Submission status: Accepted

Solution code:
def B_OddString(s):
    ans = ''
    for i in range(len(s)):
        if i % 2 == 0:
            ans += s[i]
    return ans

s = input()
print(B_OddString(s))

Submission status: Accepted

Solution code:
tmp=map(str, raw_input())

arr=[]
for n,i in enumerate(tmp):
    if n%2==0:
        arr.append(i)

print "".join(arr)

Submission status: Accepted

Solution code:
s = input()
l = len(s)
ans = []
for i in range(l):
    if i % 2 == 0:
        ans.append(s[i])
s = "".join(ans)
print(s)

Submission status: Accepted

Solution code:
s = input()
c = 0
ans = []
for i in s:
    if c % 2 == 0:
        ans.append(i)
    c+=1
        
print(''.join(ans))

Submission status: Accepted

Solution code:
s=raw_input()

print s[0::2]

Submission status: Accepted

Solution code:
s = input()		# 文字列の入力  abcdefg...

for i, x in enumerate(s):
	if i%2==0:
		print(x, end="")

print("")

Submission status: Accepted

Solution code:
nm = input().strip()

print(nm[::2])

Submission status: Accepted

Solution code:
def solve():
    s = list(input())
    s_odd = s[::2]
    print("".join(s_odd))

   
solve()

Submission status: Accepted

Solution code:
def main():
    S = input()
    print(S[::2])

main()

Submission status: Accepted

Solution code:
k = input()
print(k[::2])

Submission status: Accepted

Solution code:
s=input()
ans=''
for i in range(0, len(s), 2) :
    ans+=s[i]
print(ans)

Submission status: Accepted

Solution code:
s=input()

print(s[0::2])

Submission status: Accepted

Solution code:
word = input()

answer = ''

for i in range(0, len(word), 2):
    answer += word[i]

print(answer)

Submission status: Accepted

Solution code:
s = input()
for i in range(0, len(s), 2):
	print(s[i], end = '')

Submission status: Accepted

Solution code:
s = input().strip()
for i, c in enumerate(s):
  if i%2 == 0:
    print(c,end='')
print()

Submission status: Accepted

Solution code:
s = input()
result = "" 
for i in range(0, len(s), 2):
    result += s[i]
    
print(result)

Submission status: Accepted

Solution code:
s=input()
for i in range(len(s)):
    if i%2==0:print(s[i],end="")

Submission status: Accepted

Solution code:
s = input()
l = []
for i in range(len(s)):
    if i % 2 == 0:
        l.append(s[i])

print(''.join(l))

Submission status: Accepted

Solution code:
s = input()
o = ""
for i, ss in enumerate(s):
    if i % 2 == 0:
        o = o + ss
print(o)

Submission status: Accepted

Solution code:
print("".join(input()[0::2]))

Submission status: Accepted

Solution code:
s = input()
t = ""
for i in range(0, len(s), 2):
    t += s[i]
print(t)

Submission status: Accepted

Solution code:
s = input()
print(''.join([c for i, c in enumerate(s) if i % 2 == 0]))

Submission status: Accepted

Solution code:
s = input()
print(''.join(s[0::2]))

Submission status: Accepted

Solution code:
#!usr/bim/python
#! -*- coding: utf-8 -*-

s = raw_input()

ans = ""

i = 0
for i in range(len(s)):
    if i % 2 == 1:
        pass
    else:
        ans += s[i]


print ans

Submission status: Accepted

Solution code:
import sys
S = input()

for i in range(len(S)):
    if i % 2 == 0:
        sys.stdout.write(S[i])
sys.stdout.write("\n")

Submission status: Accepted

Solution code:
s = input()

for i in range(0,len(s),2):
    print(s[i],end="")
print()

Submission status: Accepted

Solution code:
S = input()
ans = ""

for i in range(0, len(S), 2):
    ans += S[i]

print(ans)

Submission status: Accepted

Solution code:
s = input()
ans = ''
for i in range(len(s)):
    if i % 2 == 0:
        ans += s[i] 
print(ans)

Submission status: Accepted

Solution code:
temp = input().split(" ")
mojis = list(temp[0])
ans = ""
for a in range(len(mojis)):
    if a % 2 == 0:
        ans = ans + mojis[a]
print(ans)

Submission status: Accepted

Solution code:
S = input()

res = ""

for i, v in enumerate(S):
    if i % 2 == 0:
        res += v

print(res)

Submission status: Accepted

Solution code:
# encoding: "utf-8"

class Stdin:
    @staticmethod
    def read_line(converter=str):
        return [converter(x) for x in input().split()]
    
    @staticmethod
    def read_lines(n, converter=str):
        result = list()
        for _ in range(n):
            result.append(Stdin.read_line(converter))
        return result
    
    @staticmethod
    def convert(data, converter):
        assert(len(data) == len(converter))
        return tuple(map(lambda x, f: f(x), data, converter))

    @staticmethod
    def convert_lines(datas, n, converter):
        return [converter(data, n, converter) for data in datas]


def main():
    s = input()
    r = "".join([c for (i,c) in enumerate(s) if i % 2 == 0])
    print(r)

if __name__ == "__main__":
    main()

Submission status: Accepted

Solution code:
from sys import stdin
a = stdin.readline().strip()
ans = ""
l = len(a)
for i in xrange(l):
 if i%2==0:
  ans += a[i]
print ans

Submission status: Accepted

Solution code:
s = input()
a = s[0::2]
print(a)

Submission status: Accepted

Solution code:
s = input()
for i in range(len(s)):
    if i % 2 == 0:
        print(s[i], end="")
print("")

Submission status: Accepted

Solution code:
# coding: utf-8
s = raw_input()
print s[0::2]

Submission status: Accepted

Solution code:
# coding: utf-8
def get_ln_inputs():
    return input().split()


def get_ln_int_inputs():
    return list(map(int, get_ln_inputs()))


def main():
    print(get_ln_inputs()[0][::2])


main()

Submission status: Accepted

Solution code:
s = input()
ss = [s_ for idx, s_ in enumerate(list(s)) if idx % 2 == 0]
print(''.join(ss))

Submission status: Runtime Error

Solution code:
s = input()
odd_num = list()

for i in range(len(s)):

    if i % 2 == 0:
        odd_num.append(s[i])

answer = ''.join(odd_num)
print(answer)



s = input()
print(s[::2])

Submission status: Runtime Error

Solution code:
OddString

Submission status: Runtime Error

Solution code:
s = input()
x = ''
for i in range(1, len(s) + 1):
    if i % 2 != 0:
        x = x + s[i]
print(x)

Submission status: Runtime Error

Solution code:
s = input()
for i in range(0, len(s), 2):
  print(s[i], end = '')
s = input()
for i in range(0, len(s), 2):
  print(s[i], end = '')

Submission status: Runtime Error

Solution code:
s = input()
s.split()
odd = []

for i in range():
    if i % 2 == 0:
        odd.append(s[i])
answer = ''.join(odd)

print(answer)

Submission status: Runtime Error

Solution code:
s = input()
snum = len(s)
harf_snum = snum // 2

s_odd = []
for i in range(harf_snum + 1):
    s_odd.append(s[i * 2])
print("".join(s_odd))

Submission status: Runtime Error

Solution code:

class Atc_072b:
    def __init__(self, s: str) -> str:
        self.s = s

    def odd(self):
        s_odd = ""
        for i in range(0, len(self.s)):
            if i % 2 == 0:
                s_odd += self.s[i]
        return s_odd


s_input = input()
print(Atc_072b(s_input).odd())
© 2020 GitHub, Inc.

Submission status: Runtime Error

Solution code:
#072B
s=list(input())
data=s[0]
i=1
while i*2<=len(s):
    data=data+s[i*2]
    i=i+1
print(data)

Submission status: Runtime Error

Solution code:
n=input()
a = []
for i in range(0,len(n)+1,2):
  a.append(str(n[i]))
print(*a)

Submission status: Runtime Error

Solution code:
n=input()
import math
a = []
for i in range(0,math.ceil(len(n)/2),2):
  a.append(str(a[i]))
print(*a)

Submission status: Runtime Error

Solution code:
n=input()
import math
a = []
for i in range(0,math.ceil(n/2),2):
  a.append(str(a[i]))
print(*a)

Submission status: Runtime Error

Solution code:
n=input()
import math
a = []
for i in range(0,math.ceil(n/2),2):
  a.append(a[i])
print(*a)

Submission status: Runtime Error

Solution code:
a=input()
b=""
for i in range(a):
  b=b+a[2*i]
print(b)

Submission status: Runtime Error

Solution code:
s=list(input())
s1=[]
for i in s:
  if (s.index(i)+1)%2!=0:
    s1.append(i)
print(i for i in s1,end="")

Submission status: Runtime Error

Solution code:
a=input()
n=[]
for i in range(len(a)):
  if i%2==1:
    n.append(i)
ans=''
for i in n:
  ans+=i
print(ans)

Submission status: Runtime Error

Solution code:
s=list(input())

for i in range(len(s)):
  if i%2==1:
    s.pop(i)
  
ss=''.join(map(str,s))

print(ss)

Submission status: Runtime Error

Solution code:
s=list(input())


for i in range(len(s)//2):
  s.pop(2*i-1)
  
ss=''.join(map(str,s))

print(ss)

Submission status: Runtime Error

Solution code:
s=list(input())

for i in range(len(s)):
  s.pop(2*i-1)
  
ss=''.join(map(str,s))

print(ss)

Submission status: Runtime Error

Solution code:
#-------------
s = input()
#-------------
N = len(s)//2
q = 0
if N%2 == 1:
  q=1
Odd = []
for i in range(N+q):
  Odd.append(s[2*i])
Odd = "".join(Odd)
print(Odd)

Submission status: Runtime Error

Solution code:
S = input()
res = ""
for i in range(0,N,2):
  res += S[i]
print(res)

Submission status: Runtime Error

Solution code:
s = input()
ans = ""
for i in range(1:: 2):
    ans += s[i]

print(ans)

Submission status: Runtime Error

Solution code:
s = list(input())
ans = []
for i in range(0,len(s)/2,2):
  ans.append(s[i])
print(""・join(ans))

Submission status: Runtime Error

Solution code:
s = input()

oddstring = s[0]
a = (len(s) + 1) // 2

for i in renge(a-1)}:
    oddstring += s[2*i+2]

print(oddstring)

Submission status: Runtime Error

Solution code:
s = input()
print(s[::2]

Submission status: Runtime Error

Solution code:
s = str(input())
a = ""
for i in range(len(s)//2+1):
    a += s[2*i]
print(a)

Submission status: Runtime Error

Solution code:
def main():
    N = int(input())
    A = list(map(int, input().split()))

    if 0 in A:
        print(0)
        return

    ans = 1
    for a in A:
        ans *= a
        if ans > 1000000000000000000:
            print(-1)
            return

    print(ans)


main()

Submission status: Runtime Error

Solution code:
s = input()
a = int(len(s))
x = []
while i <= a:
  if i == 0:
    i = 1
    x.append(s[i])
  else:
    i += 2
    x.append(s[i])
print(x,end=',')

Submission status: Runtime Error

Solution code:
s=str(input())
s=list(s)
ans=[]
for i in range(0,len(s)):
  if s%2==0:
    ans.append(s[i])
print("".join(ans))

Submission status: Runtime Error

Solution code:
s = input()
print(s.[::2])

Submission status: Runtime Error

Solution code:
s = input()
print(s.[1::2])

Submission status: Runtime Error

Solution code:
s = input()
print(s.[::1])

Submission status: Runtime Error

Solution code:
s = input()
t = 0
ans =''
while t <= len(s):
  ans += s[t]
  t += 2
print(ans)

Submission status: Runtime Error

Solution code:
moji=list(str(input()))
ans=""
for i in range(len(moji)):
  if i%2==0:
    ans+=lst[i]
print(ans)

Submission status: Runtime Error

Solution code:
s = list(int(input()))
print(s[1::2])

Submission status: Runtime Error

Solution code:
s = list(map(int,input().split()))
print(s[1::2])

Submission status: Runtime Error

Solution code:
import sys, re
from collections import deque, defaultdict, Counter
from math import ceil, sqrt, hypot, factorial, pi, sin, cos, radians
from itertools import accumulate, permutations, combinations, product, groupby
from operator import itemgetter, mul
from copy import deepcopy
from string import ascii_lowercase, ascii_uppercase, digits
from bisect import bisect, bisect_left
from fractions import gcd
from heapq import heappush, heappop
from functools import reduce
def input(): return sys.stdin.readline().strip()
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))
def ZIP(n): return zip(*(MAP() for _ in range(n)))
sys.setrecursionlimit(10 ** 9)
INF = float('inf')
mod = 10 ** 9 + 7
import numpy as np

s = input()
 
i = 0
 
while i <= len(s):
	print(s[i], end="")
	i += 2
 
print()