program HelloWorld;

var a,b,c:integer;

begin
    writeln('Vvedite dva chusla');
    readln(a,b);
    if a*b<0 then 
		begin
		c:=(a*b)*(-2);
		writeln(c);
		end
    else
		begin
		c:=(a*b)*5;
		writeln(c);
    end
end.