Плз по максимальное количкство

1.
var
  s: string;
  i, count: integer;
begin
  writeln('Vvedite stroky: ');
  readln(s);
  for i := 1 to length(s) - 2 do
    if copy(s, i, 3) = 'abc' then
      count := count + 1;
  writeln('Kol-vo: ', count);
end.
2.
var
  s1, s2: string;
  i, len1, len2: integer;
begin
  writeln('Vvedite stroky 1: ');
  readln(s1);
  writeln('Vvedite stroky 2: ');
  readln(s2);
  len1 := length(s1);
  len2 := length(s2);
  if len1 > len2 then writeln('1 stroka dlinnee')
  else if len1 < len2 then writeln('2 stroka dlinnee')
  else writeln('dlini strok ravnie')
end.
3.
var
  s1, s2, s3: string;
begin
  writeln('Vvedite stroky 1: ');
  readln(s1);
  writeln('Vvedite stroky 2: ');
  readln(s2);
  s3 := s1[1] + s1[2] + s2[1] + s2[2];
  writeln('Novaja stroka: ', s3);
end.

{1}

var
  a,k,s: integer;
begin
  read(a);
  k := 0; s := 0;
  while a mod 2 <> 0 do
    begin
    if abs(a) mod 10 > 5 then
      s := s + a;
    a := abs(a);
    if (a > 9) and (a < 100) then
      k := k + 1;
    read(a);
    end;
  writeln('k=',k,', s=',s)
end.

{2}

var
  n,i,p,a: integer;
begin
  read(n);
  p := 1;
  for i := 1 to n do
    begin
    read(a);
    if (a > 0) and (a mod 3 = 0) then
      p := p * a;
    end;
  writeln('p=',p)
end.

{3}

var
  n,a,i,k,s: integer;
begin
  read(n);
  k := 0; s := 0;
  for i := 1 to n do
    begin
    read(a);
    if a > 0 then
      begin
      s := s + a;
      k := k + 1;
      end;
    end;
  if k = 0 then k := 1;
  writeln('s=',s/k)
end.