#include <iostream>

using namespace std;

int main() {
    double y, z;
    cout<<"y=(z+12*z)/(z*z)"<< endl;
    cout<<"Ââåäèòå çíà÷åíèå z:";
    cin>>z;
    cout<<"y=";
    y = (z+12*z)/(z*z);
cout<<y<< endl;
    system ("pause");
    return 0;
}