1 #include <bits/stdc++.h> 2 using namespace std; 3 #define fr first 4 #define sc second 5 #define cl clear 6 #define BUG puts("here!!!") 7 #define W(a) while(a--) 8 #define pb(a) push_back(a) 9 #define Rint(a) scanf("%d", &a)10 #define Rll(a) scanf("%I64d", &a)11 #define Rs(a) scanf("%s", a)12 #define Cin(a) cin >> a13 #define FRead() freopen("in", "r", stdin)14 #define FWrite() freopen("out", "w", stdout)15 #define Rep(i, len) for(int i = 0; i < (len); i++)16 #define For(i, a, len) for(int i = (a); i < (len); i++)17 #define Cls(a) memset((a), 0, sizeof(a))18 #define Clr(a, x) memset((a), (x), sizeof(a))19 #define Full(a) memset((a), 0x7f7f7f, sizeof(a))20 #define lrt rt << 121 #define rrt rt << 1 | 122 #define pi 3.1415926535923 #define RT return24 #define lowbit(x) x & (-x)25 #define onecnt(x) __builtin_popcount(x)26 typedef long long LL;27 typedef long double LD;28 typedef unsigned long long ULL;29 typedef pair<int, int> pii;30 typedef pair<string, int> psi;31 typedef pair<LL, LL> pll;32 typedef map<string, int> msi;33 typedef vector<int> vi;34 typedef vector<LL> vl;35 typedef vector<vl> vvl;36 typedef vector<bool> vb;37 38 const int maxn = 330;39 int n;40 pii a[maxn];41 LL s[maxn];42 LL dp[maxn][maxn];43 44 signed main() {45   //FRead();46   int T;47   Rint(T);48   W(T) {49     Cls(s);50     Rint(n);51     For(i, 1, n+1) Rint(a[i].first);52     For(i, 1, n+1) {53       Rint(a[i].second);54       s[i] = s[i-1] + a[i].second;55     }56     Cls(dp);57     For(k, 2, n+1) {58       For(i, 1, n-k+2) {59         int j = i + k - 1;60         For(p, i, j) dp[i][j] = max(dp[i][j], dp[i][p]+dp[p+1][j]);61         if(__gcd(a[i].first, a[j].first) > 1) {62           if(k == 2) dp[i][j] = a[i].second + a[j].second;63           else {64             if(s[j-1] - s[i] == dp[i+1][j-1]) {65               dp[i][j] = max(dp[i][j], dp[i+1][j-1]+a[i].second+a[j].second);66             }67           }68           dp[i][j] = max(dp[i][j], max(dp[i][j-1], dp[i+1][j]));69         }70       }71     }72     printf("%I64d\n", dp[1][n]);73   }74   RT 0;75 }