#include <iostream>
using namespace std;

void printMessage(int i) {
	cout << "Enter number" << endl;	
	cin >> i;
}
void numberCwadrat(int a) {
	int b;
	printMessage(b);
	a = b * b;
}
int main() {
	int c = 1;
	int n;
	printMessage(n);
	numberCwadrat(c);
	cout << c << endl;
	return 0;
}