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>
using namespace std;

#define task "test"

typedef long long ll;
typedef pair <int, int> ii;
typedef pair <ll, ll> pll;

#define pb push_back
#define mp make_pair
#define X first
#define Y second

const ll LINF = 1E18;
const int INF = 1E9;
const int MOD = 1E9 + 7;

const int nmax = 1;

int t = 1;
ll n;

void Input()
{
     cin >> n;
}

void Solve()
{
     cout << abs(1 - n);
}

int main()
{
     ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
     if(fopen(task ".inp", "r")) {
          freopen(task ".inp", "r", stdin);
          freopen(task ".out", "w", stdout);
     }
     //cin >> t;
     while (t--) {
          Input();
          Solve();
     }
     return 0;
}