#‎include‬ <stdio.h>
#include <stdlib.h>
#include <math.h>

typedef struct listaelem {
double x;
double y;
struct listaelem* kov;}
listaelem;

int elorebeszur (listaelem* head){
double a,b;
listaelem* ujelem;
listaelem* p=head;
scanf("%lf, %lf", &a, &b);
if(ujelem!=NULL){
head=ujelem;
ujelem->x=a;
ujelem->y=b;
return 0;
}
else
return 1;
}

int main(){
listaelem* head;
listaelem* vege;
listaelem* start=head;
int i;
int j=0;
int elemszam;
head->kov=vege;
for(i=0; i<elemszam; i++){
elorebeszur (head);}
for(start=head; start->kov->kov!=NULL; start=start->kov){
printf("x=%l, y=%l\n", listaelem.x, listaelem.y);
j++;}
if (i==j)
printf("SIKERULT!");
return 0;
}