#include <stdio.h>
#include <math.h>
#include <conio.h>
int main() {
int a, A, B, C;
printf("Nhap so a:");
scanf("%d", &a);
A = a*a;
B = a*a*a;
C = a*a*a*a;
printf("Binh phuong la: %d\n", A);
printf("Lap phuong la: %d\n", B);
printf("Luy thua cap bon la: %d", C);
getch();