Подпрограмма: вычисление модуля суммы отрицательных элементов массива - VB

Формулировка задачи:

Для массивa x=(x1,x2,..,xn) составить подпрограмму,вычисляющую модуль суммы отриц. элементов массива. Подпрограмму использовать для обработки массивов A12,B16,C20,D8,ЭЛЕМЕНТЫ КОТОРЫХ ВЫЧИСЛЯЮТСЯ ПО ФОРМУЛАМ:

=3.8*i^2-12.4*i+5.1

=5.6*i^2+11.5*i-29.3

=18.1*k^2-6.8*k-9.9

=10.5*l^2-21.6*l+6.9

Sub Podpr()
Dim n As Integer, x(100) As Single, A(100) As Single, B(100) As Single, C(100) As Single, D(100) As Single, S As Single
Cells(5, 1) = "ГЊГ*Г±Г±ГЁГўГ»"
Cells(6, 1) = "X="
Cells(7, 1) = "A="
Cells(8, 1) = "B="
Cells(9, 1) = "C="
Cells(10, 1) = "D="
Cells(11, 1) = "Г‘ГіГ¬Г¬Г*"
Cells(12, 1) = "S="
n = InputBox("Г‚ГўГҐГ¤ГЁГІГҐ Г°Г*Г§Г¬ГҐГ°Г*Г®Г±ГІГј")
Call vvod(n, x)
Call vivodAi(n, A)
Call vivodBi(n, B)
Call vivodCk(n, C)
Call vivodDl(n, D)
Call Sum(n, x, A, B, C, D)
End Sub
 
Sub vvod(n As Integer, x() As Single)
Dim i As Integer
For i = 1 To n
x(i) = Cells(6, i + 1)
Next i
End Sub
 
Sub vivodAi(n As Integer, A() As Single)
Dim i As Integer
i = Cells(4, 2)
A(i) = 3.8 * i ^ 2 - 12.4 * i + 5.1
For i = 1 To n
Cells(7, i + 1) = A(i)
Next i
End Sub
Sub vivodBi(n As Integer, B() As Single)
Dim i As Integer
i = Cells(4, 2)
B(i) = 5.6 * i ^ 2 + 11.5 - 29.3
For i = 1 To n
Cells(8, i + 1) = B(i)
Next i
End Sub
Sub vivodCk(n As Integer, C() As Single)
Dim k As Integer
k = Cells(4, 6)
C(k) = 18.1 * k ^ 2 - 6.8 * k - 9.9
For k = 1 To n
Cells(9, k + 1) = C(k)
Next k
End Sub
Sub vivodDl(n As Integer, D() As Single)
Dim l As Integer
l = Cells(4, 4)
D(l) = 10.5 * l ^ 2 - 21.61
For l = 1 To n
Cells(10, l + 1) = D(l)
Next l
End Sub
 
Sub Sum(n As Integer, x() As Single, A() As Single, B() As Single, C() As Single, D() As Single)
Dim i As Integer, j As Integer, k As Integer, l As Integer
S = 0
For i = 1 To n
If x(i) < 0 Then
  If A(i) < 0 Then
    If B(i) < 0 Then
      If C(k) < 0 Then
        If D(l) < 0 Then
        S = Abs(S) + A(i) + B(j) + C(k) + D(z) + x(i)
        Else
        Cells(11, 2) = "Г*ГҐГІ S"
        GoTo 1
        End If
     Else
     Cells(11, 2) = "Г*ГҐГІ S"
     GoTo 1
     End If
   Else
   Cells(11, 2) = "Г*ГҐГІ S"
   GoTo 1
   End If
  Else
  Cells(11, 2) = "Г*ГҐГІ S"
  GoTo 1
  End If
Else
Cells(11, 2) = "Г*ГҐГІ S"
GoTo 1
End If
Next i
Cells(11, 2) = S
1: End Sub

Заранее спасибо. P.S. массивы выводятся,равными нулю,следовательно суммы нет.

плиз помогите,мне в четверг нужно сдать.

Решение задачи: «Подпрограмма: вычисление модуля суммы отрицательных элементов массива»

textual
                            Листинг программы 
                        

                            Sub Proba()
dim A As Byte, B As Byte
dim SUM As Byte
A = 5
B = 6 
SUM = Summa(A, B)
End Sub
 
Function Summa(ByVal X As Byte, ByVal Y As Byte) As Byte
Summa = X + Y
End Function
                        