function code = getCode(a, bz)
if bz == 1
    if a < 0.1
        code = 0;
    elseif a < 1
        code = 1;
    elseif a < 3
        code = 1;
    else
        code = 2;
    end
elseif bz == 2
    if a < 0.1
        code = 1;
    elseif a < 1
        code = 0;
    elseif a < 3
        code = 2;
    else
        code = 2;
    end
else
    if a < 0.1
        code = 0;
    elseif a < 1
        code = 0;
    elseif a < 3
        code = 1;
    else
        code = 2;
    end
end
end