#include "vision.h"
#include <bits/stdc++.h>
using namespace std;
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define trav(a, x) for(auto& a : x)
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x).size()
#define eb emplace_back
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
void construct_network(int H, int W, int K) {
auto at = [&](int x, int y){ return x*W + y; };
vi rows(H), cols(W);
rep(x,0,H) {
vi a;
rep(y,0,W) a.eb(at(x,y));
if(x != 0) a.eb(rows[x-1]);
rows[x] = add_xor(a);
}
rep(y,0,W) {
vi a;
rep(x,0,H) a.eb(at(x,y));
if(y != 0) a.eb(cols[y-1]);
cols[y] = add_xor(a);
}
vi Q = rows;
Q.insert(Q.end(), all(cols));
int F = add_xor({0,0}), T = add_not(F), t;
const int bits = 9;
vi n(bits, F);
for(int x : Q) {
rep(b,0,bits) {
// n_b = n_b ^ x
// x = n_b & x
t = add_xor({x, n[b]});
x = add_and({x, n[b]});
n[b] = t;
}
}
vi good(bits);
rep(b,0,bits) {
good[b] = add_xor({n[b], (K & 1) ? F : T});
K /= 2;
}
int ans = add_and(good);
}
