Mystar produced shuttlecocks. In January, Mystar had RM28,000 of materials in stocks. During January, Mystar purchased RM120,000 of materials. On 31 January, the raw materials stock amounted to RM35,000. The direct labour costs are RM 23,000 and Mystar also incurred the direct expenses of RM3,000 for the shuttlecocks box design. How much are the prime costs in the production of shuttlecocks for January?