1438_B. Valerii Against Everyone
You're given an array b of length n. Let's define another array a, also of length n, for which a_i = 2^{b_i} (1 ≤ i ≤ n). 

Valerii says that every two non-intersecting subarrays of a have different sums of elements. You want to determine if he is wrong. More formally, you need to determine if there exist four integers l_1,r_1,l_2,r_2 that satisfy the following conditions: 

  * 1 ≤ l_1 ≤ r_1 < l_2 ≤ r_2 ≤ n; 
  * a_{l_1}+a_{l_1+1}+…+a_{r_1-1}+a_{r_1} = a_{l_2}+a_{l_2+1}+…+a_{r_2-1}+a_{r_2}. 



If such four integers exist, you will prove Valerii wrong. Do they exist?

An array c is a subarray of an array d if c can be obtained from d by deletion of several (possibly, zero or all) elements from the beginning and several (possibly, zero or all) elements from the end.

Input

Each test contains multiple test cases. The first line contains the number of test cases t (1 ≤ t ≤ 100). Description of the test cases follows.

The first line of every test case contains a single integer n (2 ≤ n ≤ 1000).

The second line of every test case contains n integers b_1,b_2,…,b_n (0 ≤ b_i ≤ 10^9). 

Output

For every test case, if there exist two non-intersecting subarrays in a that have the same sum, output YES on a separate line. Otherwise, output NO on a separate line. 

Also, note that each letter can be in any case. 

Example

Input


2
6
4 3 0 1 2 0
2
2 5


Output


YES
NO

Note

In the first case, a = [16,8,1,2,4,1]. Choosing l_1 = 1, r_1 = 1, l_2 = 2 and r_2 = 6 works because 16 = (8+1+2+4+1).

In the second case, you can verify that there is no way to select to such subarrays.
```python
import sys
#from collections import deque
#from functools import *
#from fractions import Fraction as f
from copy import *
from bisect import *	
#from heapq import *
from math import gcd,ceil,sqrt
from itertools import permutations as prm,product
 
def eprint(*args):
    print(*args, file=sys.stderr)
zz=1
 
#sys.setrecursionlimit(10**6)
if zz:
	input=sys.stdin.readline
else:	
	sys.stdin=open('input.txt', 'r')
	sys.stdout=open('all.txt','w')
di=[[-1,0],[1,0],[0,1],[0,-1]]

def string(s):
	return "".join(s)
def fori(n):
	return [fi() for i in range(n)]	
def inc(d,c,x=1):
	d[c]=d[c]+x if c in d else x
def bo(i):
	return ord(i)-ord('A')	
def li():
	return [int(xx) for xx in input().split()]
def fli():
	return [float(x) for x in input().split()]	
def comp(a,b):
	if(a>b):
		return 2
	return 2 if a==b else 0		
def gi():	
	return [xx for xx in input().split()]
def gtc(tc,ans):
	print("Case #"+str(tc)+":",ans)	
def cil(n,m):
	return n//m+int(n%m>0)	
def fi():
	return int(input())
def pro(a): 
	return reduce(lambda a,b:a*b,a)		
def swap(a,i,j): 
	a[i],a[j]=a[j],a[i]	
def si():
	return list(input().rstrip())	
def mi():
	return 	map(int,input().split())			
def gh():
	sys.stdout.flush()
def isvalid(i,j,n,m):
	return 0<=i<n and 0<=j<m 
def bo(i):
	return ord(i)-ord('a')	
def graph(n,m):
	for i in range(m):
		x,y=mi()
		a[x].append(y)
		a[y].append(x)


t=fi()

while t>0:
	t-=1
	n=fi()
	a=li()
	print("YES" if len(a)>len(set(a)) else "NO")

```