收起
sum+=1->sum+=i
c=input() n=int(input()) for i in range(1, n + 1): print(' ' * (n - i) + c * (i * 2 - 1)) if n % 2 == 0: n = n - 1 for i in range(n): print(' ' * (i + 1) + c * (n - i * 2))
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