#include <stdio.h>
#include <malloc.h>

typedef struct node{
    int number;
    struct node *p_next;
} NODE;

void AddNumber(NODE **pp_head, NODE **pp_tail, int data){
    if(*pp_head != NULL){
        (*pp_tail)->p_next = (NODE *)maloc(sizeof(NODE));
        *pp_tail = (*pp_tail)->p_next;
        
    }else{
        *pp_head = (NODE *)maloc(sizeof(NODE));
        *pp_tail = *pp_head;
    }
    (*pp_tail)->number = data;
    (*pp_tail)->p_next = NULL;
}

void main(){
    NODE *p_head = NULL, *p_tail = NULL, *p;
    int sum = 0, temp;

    while(1){
        printf("숫자를 입력하세요 (9999를 누르면 종료) : ");
        scanf("%d", &temp);
        if(9999 == temp) break;
        AddNumber(&p_head, &p_tail, temp);
        
    }
    p = p_head;
    while(p != NULL){
        if(p != p_head) printf(" + ");
        printf(" %d ", p->number);
        sum = sum + p->number;
        p = p->p_next;
    }
    printf(" + %d\n", sum);

    while(p_head != NULL){
        p = p_head;
        p_head = p_head->p_next;
        free(p);
    }
    p_tail = p_head;
}