A structural fiber cement sheet containing cementitious matrix and reinforcing cellulose fibers distributed throughout the matrix having a dry density less than 1. The code block specifies an iterated operation having a first operand and a second operand, where each of multiple first operands and each of multiple second operands for the iterated operation has a defined addressing relationship. This invention also relates to methods for producing a 33T17 hybrid maize plant containing genetic material for one or more desirable traits and to the maize plant produced by that method.