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  1. # your code goes here
  2. def solution(n):
  3. i = 0
  4. while i < n * 2 - 1:
  5. c = n - abs((i + 1) - n)
  6. w = 'D' if c % 2 == 0 else 'd'
  7. print(w * c)
  8. i += 1
  9.  
  10. while True:
  11. try:
  12. solution(int(input()))
  13. print()
  14. except:
  15. break
  16.  
Success #stdin #stdout 0.02s 9184KB
stdin
3
6
stdout
d
DD
ddd
DD
d

d
DD
ddd
DDDD
ddddd
DDDDDD
ddddd
DDDD
ddd
DD
d