// Element properties
#include <iostream>
using namespace std;

struct elementProperties{
  int z;
  string name, clas;
  double mass;
};

int main () {

  elementProperties atom;

  cout << "Number: "; cin  >> atom.z;
  cout << "  Name: "; cin  >> atom.name;
  cout << " Class: "; cin  >> atom.clas;
  cout << "  Mass: "; cin  >> atom.mass;
}