print("this program illustrates chaotic function"this line causes python to print message introducing the program when it runs take look at the next line of the programx eval(input("enter number between and ")here is an example of variable variable is used to give name to value so that we can refer to it at other points in the program the entire line is statement to get some input from the user there' quite bit going on in this lineand we'll discuss the details in the next for nowyou just need to know what it accomplishes when python gets to this statementit displays the quoted message enter number between and and then pauseswaiting for the user to type something on the keyboard and press the key the value that the user types in is then stored as the variable in the first example shown abovethe user entered which becomes the value of the next statement is an example of loop for in range( ) loop is device that tells python to do the same thing over and over again this particular loop says to do something times the lines indented underneath the loop heading are the statements that are done times these form the body of the loop ( xprint(xthe effect of the loop is exactly the same as if we had written the body of the loop timesx ( xprint(xx ( xprint(xx ( xprint(xx ( xprint(xx ( xprint(xx ( xprint(xx ( xprint(xx ( xprint(xx (