  Using matrix iterations of ccc posets, we prove the consistency with ZFC of
some cases where the cardinals on the right hand side of Cichon's diagram take
two or three arbitrary values (two regular values, the third one with
uncountable cofinality). Also, mixing this with the techniques in J Symb Log
56(3):795-810, 1991, we can prove that it is consistent with ZFC to assign, at
the same time, several arbitrary regular values on the left hand side of
Cichon's diagram.
