# coding: utf-8
# Your code here!

T=int(input())

for _ in range(T):
    N=int(input())
    A=list(map(int,input().split()))
    
    dic={0:0,1:0,2:0}
    
    for a in A:
        dic[a]+=1
    
    n_zero=0
    n_one=dic[0]
    n_two=N-dic[2]
    
    B=[]
    for a in A:
        if a==0:
            B.append(n_zero)
            n_zero+=1
        elif a==1:
            B.append(n_one)
            n_one+=1
        else:
            B.append(n_two)
            n_two+=1
    
    C=[]
    for i in range(N):
        if B[i]>B[i-1] and B[i]>B[(i+1)%N]:
            C.append(2)
        elif B[i]>B[i-1] or B[i]>B[(i+1)%N]:
            C.append(1)
        else:
            C.append(0)
    
    if A==C:
        print("Yes")
    else:
        print("No")