def f():
    N = int(input())
    A = list(map(int,input().split()))
    ws,wg = -1,-1
    for i in range(2*N):
        x = (i+1)%N if (i+1)%N!=0 else N
        if ws==-1 and A[i]!=x:
            ws = i
        if ws!=-1 and A[i]==x:
            wg = i
        if ws!=-1 and wg!=-1:
            tmp = A[ws:wg+1][::-1]
            k = 0
            for j in range(ws,wg):
                y = (j+1)%N if (j+1)%N!=0 else N
                if not tmp[k]!=y:return 'No'
                k+=1
    return 'Yes'

T = int(input())
for i in range(T):print(f())