Attention please: Each student should use the individual data based on the last digit of his/her school number. A supplier uses the standard metal rods with a length of L (cm.). At a time, a customer issues an order for three different products specified below with lengths of a, b, and c, respectively. Each type of product is requested in lots of 100 units. Develop a mathematical programming model so that total scrap is minimized. Last Digit 0123456789 L (cm.) 168 169 162 173 180 168 169 171 170 172 a (cm.) 20 26 29 28 24 21 25 28 22 21 b (cm.) 33 31 33 c (cm.) 42 40 47 35 36 36 33 34 36 34 48 41 46 46 45 48 43