Problem:
Score : 100 points

Problem Statement

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.

Sample Input 1

1

Sample Output 1

0

Sample Input 2

0

Sample Output 2

1

Solution in C++ (GCC 9.2.1) (judge verdict: Accepted)

#include <bits/stdc++.h>
#define maxn 4086 
typedef long long ll;
using namespace std;
const ll mod = 1e9 + 7;

inline int read(){
	int x = 0, f = 1;char ch = getchar();
	while(ch > '9' || ch < '0'){if(ch == '-') f = -1;ch = getchar();}
	while(ch >= '0' && ch <= '9'){x = x * 10 + ch -'0';ch = getchar();}
	return x * f;
}
int t;
int main(){
	int i, j, x, mx, ans;
	x = read();
	cout<<(x ^ 1);
}