Record Detail

#	Status	Time Cost	Memory Cost
#1	Accepted	2ms	532.0 KiB
#2	Accepted	1ms	532.0 KiB
#3	Accepted	1ms	320.0 KiB
#4	Accepted	1ms	532.0 KiB
#5	Accepted	1ms	320.0 KiB
#6	Accepted	1ms	532.0 KiB
#7	Accepted	1ms	532.0 KiB

#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
 
int main()
{
    int n;
	cin >> n;
	cout << (n & 1 ? n - 1 : n) << endl;
}

Accepted