A strange tree in a town has a certain number of long branches and short branches.Each year,a quarter of the number of s

A strange tree in a town has a certain number of long branches and short branches.Each year,a quarter of the number of short branches are lost as they become long branches.However,this would lead to the tree growing too many long branches,so the people living in the Town decided to chop off 2 long branches at the end of each year.At the beginning of 2010,the tree had 4 long branches and 64 short branches.If the tree also double the number of short branches at the beginning of each year,how any more short branches than long branches would there be at the beginning of year 2012?( the answer is 104)