#include<stdio.h>
#include<string.h>
#include<stdlib.h>
const int maxn = 1e5 + 5;

struct node {
	int num;
	struct node *next;
};

struct node* merage(struct node*head1, struct node *head2) {
	struct node* anshead = (struct node *)malloc(sizeof(struct node));
	struct node* pre = (struct node *)malloc(sizeof(struct node));
	anshead->next = NULL;
	pre = anshead;
	struct node*h1 = head1->next;
	struct node*h2 = head2->next;
	while (h1&& h2) {
		struct node* tmp = (struct node *)malloc(sizeof(struct node));
		tmp->next = NULL;
		if (h1->num > h2->num) {
			tmp->num = h2->num;
			h2 = h2->next;
		}
		else {
			tmp->num = h1->num;
			h1 = h1->next;
		}
		pre->next = tmp;
		pre = tmp;
	}
	while (h1) {
		struct node* tmp = (struct node *)malloc(sizeof(struct node));
		tmp->next = NULL;
		tmp->num = h1->num;
		h1 = h1->next;
		pre->next = tmp;
		pre = tmp;
	}
	while (h2) {
		struct node* tmp = (struct node *)malloc(sizeof(struct node));
		tmp->next = NULL;
		tmp->num = h2->num;
		h2 = h2->next;
		pre->next = tmp;
		pre = tmp;
	}
	return anshead;
}

int main() {
	struct node *pre1,*pre2;
	struct node *head1 = (struct node *)malloc(sizeof(struct node));
	head1->next = NULL;
	pre1 = head1;
	struct node *head2 = (struct node *)malloc(sizeof(struct node));
	head2->next = NULL;
	pre2 = head2;
	int n, m;
	printf("請輸入兩個連結串列的長度：\n");
	scanf("%d%d", &n, &m);
	printf("請輸入第一個連結串列的元素：\n");
	for (int i = 1; i <= n; i++) {
		struct node *tmp = (struct node *)malloc(sizeof(struct node));
		int x;
		scanf("%d", &x);
		tmp->num = x;
		tmp->next = NULL;
		pre1->next = tmp;
		pre1 = tmp;
	}
	printf("請輸入第一個連結串列的元素：\n");
	for (int i = 1; i <= m; i++) {
		struct node *tmp = (struct node *)malloc(sizeof(struct node));
		int x;
		scanf("%d", &x);
		tmp->num = x;
		tmp->next = NULL;
		pre2->next = tmp;
		pre2 = tmp;
	}
	struct node*ans = merage(head1, head2);
	struct node *p = ans->next;
	printf("輸出：\n");
	while (p != NULL) {
		printf("%d ", p->num);
		p = p->next;
	}
	scanf("%d", &n);
}