#include using namespace std; //const double PI = acos(-1); using ll = long long; using ull = unsigned long long; const int inf = 2e9; const ll INF = 4e18; const ll MOD = 1e9+7; int main(){ ios::sync_with_stdio(false); cin.tie(0); int n; cin >> n; int maze[(1<> maze[i][j]; } if (maze[i][n] == 0) t = 0; if (maze[i][n] == 1) f = 0; if (maze[i][n] == 1) last = i; } if (t) { cout << "A=⊤" << endl; } else if (f) { cout << "A=⊥" << endl; } else { cout << "A="; for (int i = 0; i < (1<