emmm

 #include <stdio.h>
 #include <stdlib.h>
 #include <iostream>
 using namespace std;
 struct student
 {
     int num;
     int score;
     struct student *next;
 }*head;
 int main()
 {
     int n,m,l,nu,sc;
     cin>>n>>m;
     l=n+m;
     head=new student;
     head->next=NULL;
     struct student *q,*p,*k;
     p=head;
     while(l--){
         q=new student;
         q->next=NULL;
         cin>>nu>>sc;
         p->num=nu;
         p->score=sc;
         p->next=q;
         p=q;
     }
     k=head;
     while(k->next!=NULL){
         cout<<k->num<<" "<<k->score<<endl;
         k=k->next;
     }
     return ;
 }