#include <bits/stdc++.h>
#define bp __builtin_popcountll
#define pb push_back
#define in(s) freopen(s, "r", stdin);
#define inout(s, end1, end2) freopen((string(s) + "." + end1).c_str(), "r", stdin),\
		freopen((string(s) + "." + end2).c_str(), "w", stdout);
#define fi first
#define se second
#define bw(i, r, l) for (int i = r - 1; i >= l; i--)
#define fw(i, l, r) for (int i = l; i < r; i++)
#define fa(i, x) for (auto i: x)
using namespace std;
const int mod = 1e9 + 7, inf = 1061109567;
const long long infll = 4557430888798830399;
typedef long long ll;
const int N = 305;
int n, d[N][N], q;
signed main() {
	#ifdef BLU
	in("blu.inp");
	#endif
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	cin >> n;
	fw (i, 0, n) fw (j, 0, n) cin >> d[i][j];
	cin >> q;
	while (q--) {
		int a, b, c;
		cin >> a >> b >> c;
		a--, b--;
		ll ans = 0;
		fw (i, 0, n) fw (j, 0, n) {
			d[i][j] = min(d[i][j], d[i][a] + d[b][j] + c);
			d[i][j] = min(d[i][j], d[i][b] + d[a][j] + c);
			ans += d[i][j];
		}
		cout << ans / 2 << " ";
	}
	return 0;
}