Textbox content split content with sum

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C#

WinForms

now i used four more textboxes
when i press button1 click i enterd in textbox1 WITH MULTI BRCKET LINE

12-A
12-B
{[8-A
8-B]2
6-C
6-D}2
12-A
12-B
4-D

TOTAL TEXTBOX 2 = 140
still its ok

but i want to if i used in textbox like above its should be displayed in

TEXTBOX3 VALUES A = 56
TEXTBOX4 VALUES B = 56
TEXTBOX5 VALUES C = 12
TEXTBOX6 VALUES D = 16

total textbox2 should match with this 4 textboxes = 140.00

plz help me

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