The revenue for Rajesh Fruit Shop varies from day to day. The shop's revenue on the first day of the year 2009 was Rs 1000/-, and on the second day it was Rs 6000/-. On the third day, the revenue decreased by Rs 4000/- as compared to the previous day's revenue. On the fourth day, the revenue increased by Rs 5000/- as compared to the previous day. If this trend continues, total revenue (in thousands) for Rajesh Fruit Shop for the year 2009 will be