2021/06/06
import sys
t = int(sys.stdin.readline().strip())
for x in range(t):
n = int(sys.stdin.readline().strip())
li = [[0 for _ in range(n+2)] for _ in range(n+2)]
save = []
for i in range(n+2):
a, b = map(int, sys.stdin.readline().split())
save.append((a,b))
for i in range(n+2):
for j in range(n+2):
if (i == j):
continue
if (abs(save[i][0] - save[j][0]) + abs(save[i][1] - save[j][1]) <= 1000):
li[i][j] = 1
for k in range(n+2):
for i in range(n+2):
for j in range(n+2):
if (i == j):
continue
if li[i][k] and li[k][j]:
li[i][j] = 1
if (li[0][n+1]):
print("happy")
else:
print("sad")