Turn it over.
The two flaps and the two pockets are remaining each face to face.
Add the last part and insert the sky blue flap to a new greenish-yellow pocket.
Can't see the mark of sky blue flap.
Insert the greenish-yellow flap to the green pocket.
Can't see the mark of greenish-yellow flap.
The remaining two flaps will be set at one time. Insert the orange flap to the greenish-yellow pocket, and insert the greenish-yellow flap to the rose pocket each other.
Finished.
If you can't see any marks of flaps, it is success.
Point