Let $f: \mathbb{R} \rightarrow \mathbb{R}$ be a function defined by
$f(x) = (2 + 3a){x^2} + \left( {\frac{{a + 2}}{{a - 1}}} \right)x + {\rm{b}},a \ne 1.{\rm{ If }}$
$f(x + {\rm{y}}) = f(x) + f({\rm{y}}) + 1 - \frac{2}{7}x{\rm{y, then the value of }}28\sum\limits_{i = 1}^5 | f(i)|{\rm{ is }}$