Integer#7491

Integer

1 second

128 megabytes

Very easy

Create class 'Integer' according to the next class diagram:

![prb7491.gif](https://static.e-olymp.com/content/f7/f70410821a9dc7d945b72f69e8ef032ef8121e19.gif)

Given three integers $a$ , $b$ , $c$ , calculate the value of expression $(a \cdot 7 + b - 2) \cdot (a - c + 5)$ (a \cdot 7 + b - 2) \cdot (a - c + 5).

"' interface MyNumber public long getValue(); public MyInteger Add(long a); public MyInteger Add(MyInteger a); public MyInteger Minus(long a); public MyInteger Minus(MyInteger a); public MyInteger Multiply(long a); public MyInteger Multiply(MyInteger a); public MyInteger Divide(long a); public MyInteger Divide(MyInteger a);

class MyInteger implements MyNumber private long n; MyInteger(long n) ... ... "'

Input

One line contains three integers $a$ , $b$ , $c$ no more than $1 0^{9}$ 10^9 by absolute value.

Output

Print the value of given expression.

Examples

Example 1

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(a \cdot 7 + b - 2) \cdot (a - c + 5)

1 0^{9}