Write a SQL to identify customers (CUSTOMER_ID) who placed more than 3 orders in year 2014 and 2015 each. If a customer placed more than 3 orders in year 2014 but did NOT place more than 3 orders in 2015, that customer should not be included in the output.

Table Name: CUST_ORDERS

ORDER_ID	CUSTOMER_ID	ORDER_DATE
101	201	2014-01-01
102	202	2014-02-12
103	203	2014-03-05
104	204	2014-04-15
105	202	2014-05-15
106	202	2014-07-10
107	203	2014-09-15
108	202	2014-12-15
109	201	2015-01-01
110	202	2015-02-12
111	202	2015-03-05
112	201	2015-04-15
113	202	2015-05-15
114	202	2015-07-10