How to get the coordinates of the upper left and lower right points of a rectangle (Yandex API)?

Question

Yandex maps

Using the function, myMap.getBounds()I get the coordinates of the lower left and upper right corners of the map display area. How to get the coordinates of the upper left and lower right points? Found the answer
Current points x1,y1 x2,y2
Required x1,y2 x2,y1
but not sure if it's correct

Answer 1

. (x1, y2) _ _ _ _ . (x2, y2)
| ...................... |
| ...................... |
| ...................... |
| ...................... |
. (x1,y1)_ _ _ _ _ . (x2, y1)
For such cases, it is convenient to draw on paper