Untitled

#include <iostream>
#include <cmath>
using namespace std;
/*
bool prostoe(int a){
	int i = 2;
	while (i <= sqrt(a)){
		if (a % i == 0){
			return false;
		}
		i++;
	}
	return true;
}
*/
/*
bool one(int a){
	if (a % 2 == 1) {
		return 0;
	}
	else {
		return 1;
	}
}
*/
/*
int e(int b) {
	int y = 2;
	int i = 0;
	while (y <= (b / 2)) {
		if (b % y == 0) {
			i++;
			cout << y << endl;
		}
		y++;
	}
	return i;
}
*/
/*
int s(int a, int b) {
	int summ = 0;
	bool h = 0;
	int i;
	while (a <= b) {
		i = 2;
		h = 0;
		while (i <= sqrt(a)) {
			if (a % i == 0)
				h = 1;
			i++;
		}
		
		if (h == 0) {
			summ += a;
			cout << a << " ";
		}
		a++;
	}
	return summ;
}
*/
/*
int r(int a) {
	while (a > 0) {
		cout << a % 10;
		a /= 10;
	}
	return 0;
}
*/
int u(int a) {
	int y = a;

}

int main(){
	/*
	int a;
	cin >> a;
	if (prostoe(a) == 1){
		cout << "YES";
	}
	else {
		cout << "NO";
	}
	*/
	/*
	int a;
	cin >> a;
	if (one(a) == 1) {
		cout << "YES";
	}
	else {
		cout << "NO";
	}
	int b;
	cin >> b;
	cout << e(b);
	return 0;
	*/
	/*
	int a, b;
	cin >> a >> b;
	cout << s(a, b);
	return 0;
	*/
	/*
	int a;
	cin >> a;
	r(a);
	return 0;
	*/
	int a;
	cin >> a;

}