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

typedef struct tovar {
    char nazov[500];
    char vyrobca[500];
    double mnozstvo;
    double cena;
    struct tovar *dalsi;
}TOVAR;




int main()
{
    char input[10];
    int i = 1;

    TOVAR *p_prv, *p_akt, *p_alt;

    p_prv = NULL;

    while (scanf("%s", input) > 0) {
        if (strcmp(input, "vloz") == 0) {
            if (i == 1) {
                p_prv = (TOVAR *)malloc(sizeof(TOVAR));
                p_akt = p_prv;
            }
            else {
                //if ((p_akt->dalsi = (TOVAR *)malloc(sizeof(TOVAR))) == NULL) {

                    p_akt->dalsi = (TOVAR *)malloc(sizeof(TOVAR)); //-itt a hiba
                //}
                    p_akt = p_akt->dalsi;
            }
            scanf("%s %s %lf %lf", &(p_akt->nazov), &(p_akt->vyrobca), &(p_akt->mnozstvo), &(p_akt->cena));
            p_akt->dalsi = NULL;
            i++;
        }
        else if (strcmp(input, "vypis") == 0) {
            p_akt = p_prv;
            while (p_akt != NULL) {
                printf("Nazov=%s, Vyrobca=%s, Mnostvo=%lf, JednotkovaCena=%lf\n", p_akt->nazov, p_akt->vyrobca, p_akt->mnozstvo, p_akt->cena);
                //p_alt = p_akt;
                p_akt = p_akt->dalsi;
            }
        }
    }
    getchar();
}