c i n g SPACE 4 . 1 SPACE G r e a t SPACE c o m p e t i t i o n SPACE f o
r SPACE r e s o u r c e s SPACE 4 . 2 SPACE T o SPACE g e t SPACE a h e a
d SPACE o f SPACE p r o b l e m s SPACE i s SPACE a SPACE w a y SPACE t o
SPACE o b t a i