题解 | #HJ76 尼科彻斯定理#
尼科彻斯定理
http://www.nowcoder.com/practice/dbace3a5b3c4480e86ee3277f3fe1e85
while True:
try:
m = int(input())
odds = list(range(m * m - (m - 1), m * m + m, 2))
print('+'.join(map(str, odds)))
except:
break
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