import random as r
def x(n):
 w=range(-n,n+1)
 for i in w:
  o=''
  for j in w:
   c=r.randint(33,124)
   c+=(c>88)+(c>119)
   if i^j and i^-j:c=32
   o+=chr(c)
  print o

x(10)