HicCup

Time limit1sMemory limit32 MB

Summary

Given N, add 10N, 10N+10, and 20N+20, then print the total.

Level: Easy1 of 10
Topics: Math, Implementation
Solved: No attempts yet

Problem

Seun posts often on an online community. The members there call a popular user a god, and God Apple and God Kariko show up under almost every post.

When Seun posts his favorite number $N$ , three gods leave a comment in turn.

God Apple writes $10N$ .
God Kariko writes $10N + 10$ .
The last god writes $20N + 20$ .

Seun cannot stop hiccuping, so he cannot add the three numbers himself. Read $N$ and print the sum of the numbers the three gods wrote in the comments.

Input

The first line contains an integer $N$ . ( $-100 \le N \le 100$ )

Output

Print the sum of the numbers the three gods wrote in the comments on the first line.

Examples3

Example 1
Input
```
-1
```
Expected output
```
-10
```
Example 2
Input
```
1
```
Expected output
```
70
```
Example 3
Input
```
0
```
Expected output
```
30
```