import sys
readline=sys.stdin.readline

T=int(readline())
for i in range(T):
    N=int(readline())
    A=list(map(int,readline().split()))
    ans="No"
    if A==[i+1 for i in range(N)]*2:
        ans="Yes"
    for a in range(N):
        lst=[i+1 for i in range(N)]*2
        lst=lst[:a]+lst[a:a+N+1][::-1]+lst[a+N+1:]
        if A==lst:
            ans="Yes"
    print(ans)