compression : 
	convert each character to its ascii code then this ascii to binary form .
	loop on this stream and count zeros between each successive ones and save them in a container .
	convert the saved numbers into binary form each one 4 digit .
decompression : 
	divide the stream of zeros ones into groups each one is 4 digits and converted to decimal then put them in a queue (each group is considered number of zeros between 2 successive ones in binary form ) .
	if there is a group after conversion to decimal = 15  then you should add the successive group to this group .
	Make up the original stream of bits by putting number of zeros = the first element in the queue then put 1 then number of zeros = the second element … etc 
	divide the new stream into groups each one 8 digit ( each group now considered ascii code for an character ) 
	convert each group to decimal then cast it to character .