LITS Alphabet Mystery

You must place a square block in each area and meet the following requirements:
-Two square blocks of the same type cannot make horizontal or vertical contact Rotation or flipping are still considered as the same type of square
-Black cells must be continuous
-2 * 2 black areas are not allowed

*Each square block is composed of four connected cells arranged together There are five types of square blocks, namely L, I, T, S, and O-shaped But the O-shaped square block does not exist in the LITS puzzle because it is a 2 * 2 shape.