#include<bits/stdc++.h>
using namespace std;
int main(){
	double L,R,V,Q,C;
	cin>>L>>R>>V;
	Q=L*R;
	C=L+R*V;
	cout<<"Q:"<<Q<<endl<<"C:"<<C;
}
 
/**************************************************************
	Problem: 1958
	User: linzihang
	Language: C++
	Result: Wrong Answer
****************************************************************/