#include <stdio.h>
#include <conio.h>
#include <cmath>
#include <iostream>

using namespace std;

float qtd ( float A, float B, float C);
void  dim (float qtdlatas);

float qtd (float A, float B, float C){
	float resqtd, area;
	area = (2*A*C)+ (2*B*C)+ (A*B);
	resqtd = (area/4)/18;
	return (resqtd);
}

void dim (float qtdlatas){
	float preco;
	preco=qtdlatas*150.00;
	cout<< "preco = "<< preco;
}

int main ()
{
        float c, l, h;
        cout<< "Digite c =";
        cin>> c;
        cout<< "Digite l =";
        cin>> l;
        cout<< "Digite h =";
        cin>> h;

        dim(qtd(c,l,h));


}