program pil_3_29_a(input,output);
var
  a, b, c : real;
  det : real;
  x : boolean;
begin
  write('Input coefficients a, b, c : ');
  read(a, b, c);
  det := b*b - 4*a*c;
  x := det>=0;
  WriteLn(x);
end.