Import a Data from a text file

[maxcom]

Hello!
I am pretty new to python and i would need some help

So i got a text file in this form

Example.txt
+++++++++++++++++++++++++++
X Y Z YY XX
e f g h i j
2 1 5 4 6 4
9 2 1 3 1 3

X Y Z YY XX
e f g h i j
3 8 0 5 7 2
9 1 2 3 4 1
++++++++++++++++++++++++++++++

i need to add up all numbers in the "j" column
the text file has hundreds of tables inside.

Does someone know how i can make this happen ?
Thx

[Larz60+]

Moved to homework, as this looks to be an assignment