def solve(aa: list[int]):
    n = len(aa)

    zero_num = aa.count(0)
    two_num = aa.count(2)

    if (
        zero_num == 0
        or zero_num > n // 2
        or two_num == 0
        or two_num > n // 2
        or zero_num != two_num
    ):
        return False

    start = aa.index(0)
    inc = False
    for i in range(1, n):
        cur = (start + i) % n
        if inc:
            if aa[cur] == 2:
                return False

            if aa[cur] == 0:
                inc = False
        else:
            if aa[cur] == 0:
                return False

            if aa[cur] == 2:
                inc = True

    return True


def main():
    t = int(input())
    for _ in range(t):
        input()
        aa = list(map(int, input().split()))
        print("Yes" if solve(aa) else "No")


if __name__ == "__main__":
    main()