Don't pass me the ball!

Time limit2sMemory limit512 MB

Summary

Given the scorer's jersey number J, count the ordered increasing 4-tuples of distinct jersey numbers ending at J.

Level: Easy3 of 10
Topics: Combinatorics, Math
Solved: No attempts yet

Problem

A soccer league plays under slightly different rules. A goal counts only when both of the following hold: the 4 players who, in order, touched the ball just before the goal have jersey numbers that are strictly increasing, and the player with the highest jersey number among them is the one who scored the goal.

Players wear jersey numbers from $1$ to $99$ , and each jersey number is worn by exactly one player.

Given the jersey number of the goal scorer, determine how many combinations of players can produce a valid goal.

Input

A single positive integer $J$ ( $1 \le J \le 99$ ), the jersey number of the goal scorer.

Output

Output one line containing the number of possible scoring combinations in which jersey number $J$ is the goal scorer.

Examples3

Example 1
Input
```
4
```
Expected output
```
1
```
Example 2
Input
```
2
```
Expected output
```
0
```
Example 3
Input
```
90
```
Expected output
```
113564
```