#1572: a462 ans


1652401-2@g.puiching.edu.mo (P6D14林建壹)

School : Pui Ching Middle School
ID : 2963
IP address : [192.168.120.33]
Last Login :
2024-11-05 12:14:44
a462. 某年二月 | From: [192.168.120.33] | Post Date : 2024-05-22 11:40

n=int(input())
if n % 4 == 0 and n % 100 != 0 or n % 400 == 0:
  print(29)
else:
  print(28)
 
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