#include<bits/stdc++.h>
using namespace std;
int main()
{
  int x;
  cin>>x;
  cout<<(1-x);
  return 0;
}  
### Prompt

Your challenge is to write a cpp solution to the following problem:

Given is an integer x that is greater than or equal to 0, and less than or equal to 1. Output 1 if x is equal to 0, or 0 if x is equal to 1.

Constraints

* 0 \leq x \leq 1
* x is an integer

Input

Input is given from Standard Input in the following format:


x


Output

Print 1 if x is equal to 0, or 0 if x is equal to 1.

Examples

Input

1


Output

0


Input

0


Output

1

### Response

```cpp
#include<bits/stdc++.h>
using namespace std;
int main()
{
  int x;
  cin>>x;
  cout<<(1-x);
  return 0;
}  
```