include[HTML_REMOVED]
using namespace std;
int main(){
double a,b,c;
cin >> a >> b >> c;
if(a + b > c && b + c > a && a + c > b) printf(“Perimetro = %.1lf\n”, a + b + c);
else printf(“Area = %.1lf\n”, (a + b) * c / 2);
return 0;
}