how to find 'n' number and split vector in to two ?

Hello I want to find 'N' Number in vectore and split into two vectors.

A = [1 2 3 4 5 6 7 8 9 10 23 55 66 77 88]

for i = 1:length(A)
    if A(:,i) <= 20
       X = A(:,i)
   else
       Y = A(:,i)
    end
end

But I want

X = [1 2 3 4 5 6 7 8 9 10]

Y = [23 55 66 77 88]

Answer 1

[madhan ravi]

 X = A(A <= 20)
 Y = A(A > 20)

You just needed to save the result in each iteration ;)