Удиви меня

F x 2x 1 x 3

F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3
F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3
F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3F x 2x 1 x 3