This exhibit contains a detailed description of each variable on each input card image. A Functional Use Index that can be used to determine which input variables are required for specific tasks appears first. Following the Functional Use Index is a Table of Contents that provides a brief description of all HEC-5 data card images. The Summary of Input Cards at the end of this exhibit shows the sequential arrangement of card images and also serves as the "table of contents" by showing, in Field 10, the page numbers where the variables are described in this exhibit.