AI Leading University

Time limit1sMemory limit1024 MB

Summary

Given a year N between 2024 and 9999, the task is to print how many years have passed since 2024, which is N minus 2024.

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

Problem

$2024$ is the year Seoul Cyber University set as the first year of its AI Leading University initiative. The university pursues educational innovation based on artificial intelligence.

A few years later, it is now $N$ . An old professor who has grown old at the Big Data AI Center without noticing the passing years wondered how many years have passed since Seoul Cyber University set 2024 as the first year of the AI Leading University. Given the year $N$ as input, output the answer.

Input

The first line contains the year $N$ the professor is curious about. ( $2024 \le N \le 9999$ )

Output

Print on the first line how many years have passed from $2024$ to $N$ .

Examples3

Example 1
Input
```
2024
```
Expected output
```
0
```
Example 2
Input
```
2031
```
Expected output
```
7
```
Example 3
Input
```
9999
```
Expected output
```
7975
```