题解 | #拍照队形#

import sys

n = int(input())
s = str(input())



for i in range(0, n // 3 * 2, 2):
    print(" " * ( i // 2 ) + s[i] +  " " * ( n // 3 * 2 + 1 - 2 * (i // 2 + 1)) + s[i+1], end = "\n")

for i in range(n // 3 * 2, n):
    print(" " * ( n // 3 ) + s[i], end = "\n")