#include "a_train.h"
#include <stdio.h>

struct car* add_car(struct car* first,const char* target) {
    struct car* newcar = calloc(1,sizeof(struct car));
    strcpy(newcar->value, target);
    struct car* this = first;  
    while (this->next != NULL) {  
        this = this->next;  
    }
    this->next = newcar;
    return first;
}

void print_train(struct car* first) {
    while(first != NULL)(
        printf("%s", first->value);
        first->value = first->next
    )
}

void cancel_train(struct car* first) {
    while(first != NULL){
        free(first->next);
        first = first->next;
    }
}


struct car* clear_train(struct car* first, const char* target) {
	return NULL;
}