#include #include using namespace std; int main(){ int n; cin >> n; vector> v(1<(n+1)); int cnt = 0; for(int i = 0; i < (1<> v[i][j]; } cnt += v[i][n]; } cout << "A="; if(cnt == 0){ cout << "⊥" << endl; return 0; }else if(cnt == 1< ans; for(int i = 0; i < (1<