#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
using namespace std;
void solve() {
  int N;
  cin >> N;
  vector<int> A(N);
  int S = 0;
  for(int i = 0; i < N; i++) {
    cin >> A[i];
    S += A[i];
  }
  bool fn = S == N, zero = false, two = false;
  for(int i = 0; i < N; i++) {
    if(A[i] == 2 && A[(i + 1) % N] == 2) {
      fn = false;
    }
    if(A[i] == 0 && A[(i + 1) % N] == 0) {
      fn = false;
    }
    if(A[i] == 2 && A[(i + 1) % N] == 1 && A[(i + 2) % N] == 2) {
      fn = false;
    }
    if(A[i] == 0) {
      zero = true;
    }
    if(A[i] == 2) {
      two = true;
    }
  }
  if(!fn || !zero || !two) {
    cout << "No\n";
  } else {
    cout << "Yes\n";
  }
}
int main() {
  cin.tie(0); cout.tie(0);
  ios::sync_with_stdio(false);
  int T;
  cin >> T;
  while(T--) {
    solve();
  }
  return 0;
}