#include <stdio.h>
int main()
{
	int n,i;
	float x, z;
	printf("Nhap n:");
	scanf_s("%d", &n);
	if (n <= 0)
		printf("Vui long nhap lai");
	for (i = 1; i <= n; i++)
	{
		x = n / i;
		z = n % i;
		if (x == i && z == 0)
			printf("Day la so chinh phuong");
	}
	return 1;
}