Linked List (C++)

#include <iostream>
#include <string>
#include <stdio.h>
#include <string.h>
using namespace std;
class gammal{
private:
-string name;
-int payment;
public:
-gammal *next;
-gammal(){
--cout<<"New member created"<<endl;
-}
-void get_data(){
--cout<<"Enter name: ";
--cin>>name;
--cout<<"Enter payment: ";
--cin>>payment;
--next = NULL;
-}
-void print(){
--cout<<"---------"<<endl;
--cout<<name<<endl<<payment<<endl;
-}
-~gammal(){
--cout<<"Member Deleted"<<endl;
-}
};
gammal* add (gammal *g){
-if(g == NULL){
--g = new gammal;
--g->get_data();
--return g;
-}
-g->next = add(g->next);
-return g;
}
void show (gammal *g){
-while(g != NULL){
--g->print();
--g = g->next;
-}
-cout<<"------"<<endl;
}
int main()
{
-int a;
-gammal *head=NULL;
-do{
--printf( "1) Add "
----"2) Show "
----"Please, enter a number: ");
--scanf("%d",&a);
--if(a==1)
---head = add(head);
--else if(a==2)
---show(head);
-}while( a );
}