Nikita_degree_on_time1

var h,m,s:longint;
f:integer;

BEGIN
    writeln('');
    read(h,m,s);
    if (h*3600+m*60+s) < 44200 then
        f:=(h*3600+m*60+s) div 120
    else
        f:=360 - (h*3600+m*60+s) div 120;
    write(abs(f));
END.