#include<bits/stdc++.h>
using namespace std;
int main(){
	double R,L,V,Q,C;
	scanf("%lf %lf %lf",&L,&R,&V);
	Q=L*R;
	C=(L+R)*V;
  	cout<<"Q:"<<Q<<endl;
  	printf("C:%.0lf",C);
}
/**************************************************************
	Problem: 1958
	User: toughuatao1
	Language: C++
	Result: Wrong Answer
****************************************************************/