INPUT : Prompts user to input into a variable with a "?" prompt without any preceeding text or displays some preceeding text followed by the "?" prompt.

syntax: INPUT <variable> or
INPUT "<string>",<variable>

INPUT with <variable> prompts "?" during execution. Enter a value (which can be an expression) and press or click [enter]. The value is evaluated and stored to <variable>, and the program resumes execution. You can display a preceeding string as a prompt in which case the preceeding string is displayed before the "?" prompt. Enter a value and press [Enter]. The value is stored to <variable>, and the program resumes execution.