NAME: PSC*-C**-***-**** PSC = Plant-Satellite-Customer * = Instance number (1 to 5) C = Class ** = Class number (1 to 5) *** = Number of plants (50 or 100) **** = Number of products (5 or 10) FORMAT: I J K L (#plants #satellites #customers #products) K rows with customer demand for each product (L columns) I rows with plant capacity for each product (L colunms) and fixed cost for plant (last column) L matrices with I rows and J columns with flow cost of each product from plant to satellite (one matrix for product) J rows with satellite capacity for each product (L colunms) and fixed cost for satellite (last column) L matrices with J rows and K columns with flow cost of each product from sattelite to customer (one matrix for product)