Для пяти введённых действительны чисел найти максимальное и минимальное. в паскале

вот код:

var a,b,c,d,e,min,max: integer;

begin

read (a,b,c,d,e);

if (a> b) and (a> c) and (a> d) and (a> e) then max: = a;

if (b> a) and (b> e) and (b> c) and (b> d) then max: = b;

if (c> a) and (c> b) and (c> d) and (c> e) then max: = c;

if (d> a) and (d> c) and (d> b) and (d> e) then max: = d;

if (e> b) and (e> a) and (e> d) and (e> c) then max: = e;

if (a< b) and (a< c) and (a< d) and (a< e) then min: = a;

if (b< a) and (b< e) and (b< c) and (b< d) then min= b;

if (c< a) and (c< b) and (c< d) and (c< e) then min: = c;

if (d< a) and (d< c) and (d< b) and (d< e) then min: = d;

if (e< b) and (e< a) and (e< d) and (e< c) then min: = e;

writeln ('минимальное число: ',min);

writeln ('максимальное число: ',max);

end.