#include<stdio.h>
#include<malloc.h>
struct weapon
{
    int price;
    int atk;
    struct weapon * next;
};

struct weapon * create()
{
    struct weapon * head;
    struct weapon * p1, * p2;
    int n = 0;
    p1 = p2 = (struct weapon * )malloc(sizeof(struct weapon));
    scanf("%d %d",&(p1->price),&(p2->atk));
    head = NULL;
    while(p1-> price != 0){
        n++;
        if(n == 1) head = p1;
        else p2->next = p1;//p2为上一节点

        p2 = p1;//更新
        p1 = (struct weapon * )malloc(sizeof(struct weapon));
        scanf("%d %d",&(p1->price),&(p1->atk));
    }
    p2->next = NULL;//此时p2为最后一个节点
    return (head);
};

int main()
{
    struct weapon * p;
    p = create();
    printf("%d,%d",p->price,p->atk);
    return 0;
}