Table:
As of December 31,

2019	2018

Non-current deferred tax assets	$19,795	$22,201

Non-current deferred tax liabilities	$(5,637)	$(3,990)

Total net deferred tax assets	$14,158	$18,211

A merged cell in a table could be represented by the JSON {'top-left':(R1, C1), 'bottom-right':(R2, C2)}, where '(R1, C1)' and '(R2, C2)' signify the (row_id, column_id) of the top-left and bottom-right cells in the merged area. Using the shown table image, locate all merged cells and provide their coordinates in this format. Bear in mind that row and column IDs begin from 1.

This table does not contain any merged cells.