题解 | #尼科彻斯定理#
尼科彻斯定理
http://www.nowcoder.com/practice/dbace3a5b3c4480e86ee3277f3fe1e85
while True:
try:
n = int(input())
res = ''
for i in range(n*n-n+1, n*n+n+1, 2): #完全当成找规律来写了
res += str(i) + '+'
print(res[:-1])
except:
break
try:
n = int(input())
res = ''
for i in range(n*n-n+1, n*n+n+1, 2): #完全当成找规律来写了
res += str(i) + '+'
print(res[:-1])
except:
break
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