#include<iostream> #include<cstring> using namespace std; int main() { double x,y; cin>>x>>y; if((x>=-3&&x<=-1&&y>=-3&&y<=-1) ||( x<=3&&x>=1&&y<=3&&y>=1) || (x>=-3&&x<=-1&&y<=3&&y>=1) || (x<=3&&x>=1&&y>=-3&&y<=-1)) printf("%.2lf\n",10.0); else printf("%.2lf\n",0.0); return 0; }