#include <iostream>
#include <iomanip>
#include <conio.h>
#include <cmath>
using namespace std;
class vector{
public:
double x,y,z;
void set();
void show();
vector add(vector);
double mod();

};
void main(){
setlocale(LC_ALL, "russian");
vector A;
vector B;
B.x=4;
B.y=-5;
B.z=6;
A.set();
A.show();
B.show();
vector C=A.add(B);
C.show();
A.add(B).show();
C.add(A).show();
cout<<C.mod()<<endl;
double c_mod=C.mod();
cout<<c_mod<<endl;
system("pause");
}
double vector::mod(){
double otvet;
otvet = sqrt(x*x+y*y+z*z);
return otvet;
}
vector vector::add(vector B){
vector otvet;
otvet.x=x+B.x;
otvet.y=y+B.y;
otvet.z=z+B.z;
return otvet;
}
void vector::set(){
cin>>x>>y>>z;
}
void vector::show(){
cout<<"{"<<x<<";"<<y<<";"<<z<<"}"<<endl;
}