import itertools as iter
import collections as coll
import heapq as hq
import bisect as bis
from decimal import Decimal as dec
from functools import cmp_to_key
import math
import sys
#import pypyjit
#pypyjit.set_param('max_unroll_recursion=-1')
sys.setrecursionlimit(10 ** 6)
inp = sys.stdin.readline
input = lambda : inp()[:-1]
getN = lambda : int(inp())
getNs = lambda : map(int, inp().split())
getList = lambda :list(map(int, inp().split()))
getStrs = lambda n : [input() for _ in [0] * n]
getEdges = lambda n : [[x - 1 for x in getNs()] for _ in [0] * n]
def yexit(): print("Yes"); exit(0)
def nexit(): print("No"); exit(0)
pi = 3.141592653589793
mod = 1000000007
MOD = 998244353
INF = 4611686018427387903
dx = [1, 0, -1, 0];  dy = [0, 1, 0, -1]
#di = coll.defaultdict(int)
 
 
"""
Main Code
"""

def solve(n, a):
    if(2 not in a):
        return "No"
    id_start = a.index(2)
    dirs = [0] * n
    for i in range(n):
        j = (id_start + i) % n
        k = (j - 1) % n
        if(a[j] == 2):
            dirs[j], dirs[k] = 1, 0
        elif(a[j] == 1):
            dirs[j] = dirs[k]
        else:
            dirs[j], dirs[k] = 0, 1
    for i in range(n):
        j = (id_start + i) % n
        k = (j - 1) % n
        if(a[j] == 2 and (dirs[j], dirs[k]) != (1, 0)):
            return "No"
        if(a[j] == 1 and dirs[j] != dirs[k]):
            return "No"
        if(a[j] == 0 and (dirs[j], dirs[k]) != (0, 1)):
            return "No"
    return "Yes"

t = getN()
for _ in [0] * t:
    n = getN()
    a = getList()
    print(solve(n, a))