#define _USE_MATH_DEFINES #include #include #include #include #include #include #include #include #include #define ll long long #define dou(s) atof(s.c_str()) #define lon(s) atoll(s.c_str()) #define str(n) to_string(n) #define rep(i,a,b) for(ll i=a;i=a;i--) #define ALL(a) a.begin(),a.end() #define rALL(a) a.rbegin(),a.rend() #define fion(n) fixed<>n; ll k=pow(2,n); vector> q(k,vector(n)); vector r(k); bool b=true; ll m=-1; rep(i,0,k){ rep(j,0,n)cin>>q[i][j]; cin>>r[i]; if(b AND i>0 AND r[i]!=r[i-1])b=false; if(r[i])m=i; } if(b){ if(r[0])cout<<"A=⊤"<