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  1. n = int(input())
  2. c = 1
  3.  
  4. for i in range(1, n + 1):
  5.     if i % 2 != 0:
  6.         for j in range(i):
  7.             print(c + j, end="" if j == i - 1 else "*")
  8.         print()
  9.     else:
  10.         for j in range(i - 1, -1, -1):
  11.             print(c + j, end="" if j == 0 else "*")
  12.         print()
  13.     c += i
  14.  
Success #stdin #stdout 0.11s 14148KB
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stdin
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5
stdout
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1
3*2
4*5*6
10*9*8*7
11*12*13*14*15
https://ideone.com/twxgD0
language:
Python 3 (python  3.12)
created:
1 day ago
visibility:
public

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