#include <string.h>
#include <stdio.h>
#include <math.h>
struct student{
	char name[8];
	int a,b,c;
}d[1000];
int main()
{
	int b[1000]; 
	int n,i,j,k;
	scanf("%d",&n);
	for(i=0;i<n;i++){
		scanf("%s%d%d%d",d[i].name,&d[i].a,&d[i].b,&d[i].c);
		b[i]=d[i].a+d[i].b+d[i].c;
	}for(i=0;i<n-1;i++){
	 	for(j=i+1;j<n;j++){
	 		if(fabs(d[i].a-d[j].a)<=5&&fabs(d[i].b-d[j].b)<=5&&fabs(d[i].c-d[j].c)<=5&&fabs(b[i]-b[j])<=10){
	 			printf("%s %s\n",d[i].name,d[j].name);
			 }
		 }
	}return 0;
} 

C