#include <iostream>
using namespace std;

 float liniowa (float a ,float b, float x){
 	return a*x+b;
 }
 float ulamek (float l, float n){
 	return l/n;
 }

int main() {
	cout<<liniowa (3.5,3.5,3)<<endl;
	cout<<ulamek (9,2);
	return 0;

}