How to write a script to display an input of 10 times?

Write a script to ask the user to input an integer number between 0 and 255, and output the number to the screen between the characters '<' and '>'. This input and display operation should be repeated 10 for 10 times. After the 10th iteration the script should save all the input numbers to a text file in a human readable form.

Develop a user function to do the following check for each number entered: If the number entered is bigger than 255, the script should print a message " error: value too big." to the screen. If a negative number is entered, no matter what is the exact number, the script should convert it to -1.