how to concatenate different cells of a cell array in one cell without a loup ??

this is my cell B

B =

    {1x2 cell}    {1x3 cell}
How to transorm it into {1x5 cell} 
???

Answer 1

[Matt Fig]

B = {{magic(2) magic(2)},{magic(2) magic(2) magic(2)}}
B2 = cat(2,B{:})