// kiem tra so chan
#include<iostream>
using namespace std;
bool isEven(int n);
int main()
{
	int n;
	cout<< " MOi ban nhap vao so n = ";
	cin>>n;
	if(isEven(n)== true)
	cout<<n<<"la so chan!";
}
bool isEven (int n)
{
	if(n%2==0)
		return true;
	else
		return false;
}