CASH AND CASH EQUIVALENTS, AND SHORT AND LONG-TERM INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2017

CASH AND CASH EQUIVALENTS, AND SHORT AND LONG-TERM INVESTMENTS

Schedule of cash and cash equivalents and investments

	2017	2016
Cash	10,439	9,412
Banks and immediately available investments	2,544,899	5,053,971
Cash and cash equivalents	2,555,338	5,063,383

	2017	2016
Held for trading	821,518	1,024,411
Short-term investments	821,518	1,024,411