Towson Company manufactures book cases, and each requires 10 board feet of lumber. Towson expects that 1,800 and 1,650 book cases will be built in June and July, respectively. Towson keeps lumber on hand at 30% of the next month's production needs (assume that 30% of June's needs was purchased in May). Use this information to determine number board feet of lumber that Towson Company should buy in June. (Round & enter final answer to the nearest whole number.)