#include<iostream> #include<iomanip> using namespace std; int main() { double x,y; cin >> x >> y; double h = 0; //判断四个圆 bool in1 = ((x-2)*(x-2)+(y-2)*(y-2)) <= 1.0; bool in2 = ((x+2)*(x+2)+(y-2)*(y-2)) <= 1.0; bool in3 = ((x-2)*(x-2)+(y+2)*(y+2)) <= 1.0; bool in4 = ((x+2)*(x+2)+(y+2)*(y+2)) <= 1.0; if(in1 || in2 || in3 || in4){ h = 10.0; } cout << fixed << setprecision(2) << h << endl; return 0; }