Вычислить сумму элементов, расположенных над главной диагональю матрицы

Option Explicit
Dim a() As Integer, B() As Integer
 
Private Sub cmdA_Click()
Dim i As Byte, j As Byte, n As Integer
n = InputBox("Ââåäèòå êîëè÷åñòâî ñòðîê è ñòîëáöîâ â ìàññèâå A", "Ââîä")
ReDim a(1 To n, 1 To n) As Integer
Print: Print: Print "Ìàññèâ À:"
cmdA.Visible = False
cmdAV.Enabled = True
cmdB.Enabled = False
cmdBV.Enabled = False
For i = 1 To n
    For j = 1 To n
        a(i, j) = Rnd * 10 - 5
        Print a(i, j);
        Print vbTab;
    Next j
    Print
Next i
End Sub
 
Private Sub cmdAV_Click()
Dim a As Integer
 
 
 
Call MySub(a)
lblA.Caption = a
End Sub
 
Private Sub cmdB_Click()
Dim i As Byte, j As Byte, m As Integer
m = InputBox("Ââåäèòå êîëè÷åñòâî ñòðîê è ñòîëáöîâ â ìàññèâå B", "Ââîä")
ReDim B(1 To m, 1 To m) As Integer
Print: Print: Print "Ìàññèâ B:"
cmdA.Visible = False
cmdAV.Enabled = False
cmdB.Visible = False
cmdB.Enabled = False
cmdBV.Enabled = True
cmdBV.Visible = True
For i = 1 To m
    For j = 1 To m
        B(i, j) = Rnd * 10 - 5
        Print B(i, j);
        Print vbTab;
    Next j
    Print
Next i
End Sub
 
Private Sub MySub(ByRef sum As Integer, ByVal i As Byte, ByVal j As Byte, ByVal l As Integer)
l = UBound(X)
sum = 0
For i = 1 To l - 1
    For j = i + 1 To l
        sum = sum + X(i, j)
    Next j
Next i
Print sum
End Sub

Dim a() As Integer, B() As Integer
 
Private Sub ComA_Click()
Form1.Cls
Dim i As Byte, j As Byte, n As Integer
n = InputBox("Введите количество строк и столбцов в массиве A", "Ввод")
ReDim a(1 To n, 1 To n) As Integer
Print: Print: Print "Массив А:"
 
For i = 1 To n
    For j = 1 To n
        a(i, j) = Rnd * 10 - 5
        Print a(i, j);
        Print vbTab;
    Next j
    Print
Next i
    l = UBound(a)
    sum = 0
For i = 1 To l - 1
    For j = i + 1 To l
        sum = sum + a(i, j)
    Next j
Next i
Print "сумма над диоганалы="
Print sum
''''''''''''''''''''''''''''''''''''''''''''''''2-oy massiv nachinaetsya
m = InputBox("Введите количество строк и столбцов в массиве B", "Ввод")
ReDim B(1 To m, 1 To m) As Integer
Print: Print: Print "Массив B:"
For i = 1 To m
    For j = 1 To m
        B(i, j) = Rnd * 10 - 5
        Print B(i, j);
        Print vbTab;
    Next j
    Print
Next i
    l = UBound(B)
    sum = 0
For i = 1 To l - 1
    For j = i + 1 To l
        sum = sum + B(i, j)
    Next j
Next i
Print "сумма над диоганалы="
Print sum
End Sub