#include <stdio.h>
#include<math.h>

int runInt() {
    printf("Day la chuong trinh tinh bieu thuc ^^\n");
    {
      int x,A;
      int b,c;
      printf("Nhap gia tri x: ");
      scanf("%d",&x);//nhap vao gia tri 5
      b = pow(x,3);//x^3
      c = pow(x,2);//x^2
      A = 3*b - 2*c;
      printf("Gia tri cua A la: %d",A);

    }
    return 0;
}

int runDouble() {
    printf("Day la chuong trinh tinh bieu thuc ^^\n");
    {
      int x,A;
      double b,c;
      printf("Nhap gia tri x: ");
      scanf("%d",&x);//nhap vao gia tri 5
      b = pow(x,3);//x^3
      c = pow(x,2);//x^2
      A = 3*b - 2*c;
      printf("Gia tri cua A la: %d",A);

    }
    return 0;
}

int main()
{
    printf("Running Int");
    printf("\n");

    runInt();

    printf("\n");
    printf("----------------------------");
    printf("\n");

    printf("Running Double");
    printf("\n");

    runDouble();

    printf("\n");
    printf("----------------------------");
    printf("\n");
    return 0;
}