1032 立方数与连续奇数和


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Points: 100
Time limit: 1.0s
Memory limit: 32M

Problem types
Allowed languages
C, C++, Java, Python

Description

一个整数的立方数,可以表示为连续奇数的和,例如: 3^3 = 7+9+11 4^3 = 13+15+17+19 请用编程的方法求出整数n(n≤20)所表示的连续奇数和。

Sample

Input

3
4
8

Output

7+9+11
13+15+17+19
57+59+61+63+65+67+69+71

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