#include<bits/stdc++.h>
using namespace std;
int main(){
    double l,r,v;
    cin>>l>>r>>v;
    cout<<"Q:"<<l*r<<endl;
    cout<<"C:"<<(l+r)*v<<endl;     
 
}
/**************************************************************
	Problem: 1958
	User: wangyiyang
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/