coding-game (clash of codes)

#            S   M   L
# SIMPLE =>   \ / \ / \   => SMLIPE
#              I   P   E




import sys
import math

# Auto-generated code below aims at helping you parse
# the standard input according to the problem statement.

s = input()
# Write an answer using print
# To debug: print("Debug messages...", file=sys.stderr, flush=True)
if len(s)%2:
    first = s[:len(s)//2+1]
    second = s[len(s)//2+1:]
else:
    first = s[:len(s)//2]
    second = s[len(s)//2:]

z=0
f=""
for i in range(len(s)):
    if z%2:
        f+=second[z//2]
    else:
        try:
            f+=first[z//2]
        except:
            f+=second[z//2]
    z+=1

print(f)

# NOTE: NOT MINE!