#include <iostream>
using namespace std;
int main()
{
    setlocale(LC_ALL, "Rus");
    double x,y,z;
    cout<<"Введите x,y,z"<<endl;
    cin>>x;
    cin>>y;
    cin>>z;
    if(x<0)
    {
        z=(x-5)*y;
        y=(z+63)*x;
        cout<<"y="<<y<<endl;
    }
    else if(x>=0 && x<10)
    {
        z=x/y-5;
        y=x-10;
        z=y*x;
        cout<<"z="<<z<<endl;
    }
    else if(x>10)
    {
        z=x*x+y*y;
        cout<<"z="<<z<<endl;
    }
    system("pause");
}