#include <iostream>

#include <cmath>

using namespace std;

int main(){

double a, b, c;

cin >> a >> b >> c;

double sum = a+b+c;

double pr = a*b*c;

cout << "a+b+c = " << sum << endl;

cout << "a*b*c = " << pr << endl;

cout << "(a+b+c)^2 = " << sum*sum << endl;

cout << "sqrt(a*b*c) = " << sqrt(pr) << endl;

return 0;

}

var a,b,c:real;

begin

readln(a,b,c);

writeln(sqr(a+b+c):8:3, sqrt(a*b*c):10:3);

end.