simply the following Boolean expression
A-BC+AB-C-+A-BC+A-BC+AB-C
First, fix what's missing at C-+A
And it looks like a lot of garbage, since A+A+A = A
and so on
A-BC+AB-C-+A-BC+A-BC+AB-C
And it looks like a lot of garbage, since A+A+A = A
and so on