program zada4a_1_3;
var
h,s,a:real;
begin
writeln('vvedit_za_skilku_xvulun_pro4utaets_storinka_knu}I{ku_v_xvulunax_H');
readln(h);
writeln('vvedit_kilkist_storinok_v_knu}I{zi_S');
readln(s);
a:=(h*s)/60;
writeln('a=',a:5:2);
end.