前两个测试点过不了

n=int(input())
l=[]
c=0
for i in range(n):
   l1=list(map(int,input().split()))
   l.append(l1)
   l1=[]
for i in range(n-2):
    for j in range(i+1,n-1):
       if abs(l[i][0]-l[j][0])<=5 and abs(l[i][1]-l[j][1])<=5 and abs(l[i][2]-l[j][2])<=5 and abs(l[i][0]+l[i][1]+l[i][2]-l[j][0]-l[j][1]-l[j][2])<=10:
           c+=1
print(c)

求大佬指点