nested struct

//struct di dlm struct

#include<iostream.h>
#include<conio.h>

void main()
{
struct data
{
char nim[10];
char nama[35];
   };
   data x;
struct data2
{
int nilai1, nilai2, total;
struct data x;
   };
data2 y;

cout<<"input NIM : ";
cin>>y.x.nim;

   cout<<"input nama : ";
cin>>y.x.nama;

cout<<"input nilai 1 : ";
cin>>y.nilai1;

cout<<"input nilai 2 : ";
cin>>y.nilai2;

cout<<"NIM : "<<y.x.nim<<endl;
   cout<<"nama : "<<y.x.nama;
cout<<"total nilai : "<<y.nilai1 + y.nilai2;

   getch();
}