I need Formula help....

I and trying to create a formula by looking at two different cells, and based on the number there, putting the answer into a different cell.  

Seems pretty simple to me, but just can't make it work.

Here is what I have right now.

=IF(E18>=1 & E19>=4,"You got a block!!"," ")  this one is producing the correct answer, but I don't think it is right since the second one is putting in the true answer, but it is not correct. 

 =IF(E18>=2 & E19>=8,"You got TWO blocks!!"," ")

Current information in cells are:  E18 is 2 and E19 is 4.