Expression

题面翻译

题目描述

Petya在一所学校里学习数学。他们班最近在学算数表达式。最后一节课，老师在黑板上写了三个正整数a，b，c。他们的任务是在他们之间插入运算符号"+"和"* "来使得运算结果最大（可能会添加括号）。但是不能改变数字的顺序。

现在给你三个数，你要输出最大的可能。

输入输出格式

输入格式

三个正整数a，b，c，一个一行。（1<=a,b,c<=10）

输出格式

输出能得到的最大的数。

说明

从给的四个式子来看最大的可能是9。 不可以写成（1+3）* 2。

题目描述

Petya studies in a school and he adores Maths. His class has been studying arithmetic expressions. On the last class the teacher wrote three positive integers $a$ , $b$ , $c$ on the blackboard. The task was to insert signs of operations '+' and '*', and probably brackets between the numbers so that the value of the resulting expression is as large as possible. Let's consider an example: assume that the teacher wrote numbers 1, 2 and 3 on the blackboard. Here are some ways of placing signs and brackets:

• 1+2*3=7
• 1*(2+3)=5
• 1*2*3=6
• (1+2)*3=9

Note that you can insert operation signs only between $a$ and $b$ , and between $b$ and $c$ , that is, you cannot swap integers. For instance, in the given sample you cannot get expression (1+3)*2.

It's easy to see that the maximum value that you can obtain is 9.

Your task is: given $a$ , $b$ and $c$ print the maximum value that you can get.

输入格式

The input contains three integers $a$ , $b$ and $c$ , each on a single line ( $1<=a,b,c<=10$ ).

输出格式

Print the maximum value of the expression that you can obtain.

样例 #1

样例输入 #1

1
2
3

样例输出 #1

9

样例 #2

样例输入 #2

2
10
3

样例输出 #2

60