A method and system for data input is provided. The method includes inputting data, reading a subset of a set of predefined machine-readable codes from a printed media, the printed media including thereon the set of predefined machine-readable codes and a set of human-readable indicia. Each of the set of human-readable indicia is associated with a respective one of the set of predefined machine-readable codes. Each of the set of human-readable indicia indicates a user-selectable input value. The subset of the plurality of predefined machine-readable codes consists of predefined machine-readable codes that have not been defaced. The method also includes saving as user input values the user-selectable input values indicated by the indicia that are associated with the machine-readable codes in the set of predefined machine-readable codes that have not been read.