Неправильный вывод. - Pascal

program core;
 
uses moduli;
var
  a, b: x;
  i, k1, k2, n: integer;
  s1, s2, z: real;
 
procedure vivod(var a: x; var b: x; i: integer);
begin
  writeln('Массив X:');
  for i := 1 to m do
  begin
    write(' X[', i:2, ']=', a[i]:2);
    if i mod 5 = 0 then
    begin
      writeln;
    end;
  end;
  begin
    writeln;
    writeln('Массив O:');
    for i := 1 to l do
    begin
      write(' O[', i:2, ']=', b[i]:2);
      if i mod 5 = 0 then
      begin
        writeln;
      end;
    end;
  end;
end;
 
begin
  vvod(a, b, n, i);
  vivod(a, b, i);
  sum(a, m, s1);
  sum(b, l, s2);
  count(a, m, k1);
  count(b, l, k2);
  writeln;
  z := (abs(s1) + s2) / (k1 + k2);
  writeln('Значение функции z=', z:4:2);
  readln;
end.

unit moduli;
 
interface
 
const
  m = 8; l = 14;
 
type
  x = array[1..l] of integer;
 
procedure vvod(a, b: x; n: integer; var i: integer);
procedure sum(a: x; n: integer; var s: real);
procedure count(a: x; n: integer; var k: integer);
implementation
 
procedure sum;
var
  i: integer;
begin
  for i := 1 to n do
    s := s + a[i];
end;
 
procedure count;
var
  i: integer;
begin
  k := 0;
  for i := 1 to n do
    if a[i] > 0 then
      k := k + 1;
end;
 
procedure vvod;
begin
  writeln('Введите массив X');
  for i := 1 to m do
  begin
    write(' X[', i, ']=');
    read(a[i]);
  end;
  begin
    writeln('Введите массив O');
    for i := 1 to l do
    begin
      write(' O[', i, ']=');
      read(b[i]);
    end;
  end;
end;
end.