Write a complete program in assembly language using MASM syntax to perform the following tasks:

Prompts the user to enter a string.

Stores the entered string in a variable.

Copys the string to another variable.

Converts all lowercase letters in the copied string to uppercase.

Displays both the original string and the converted string.

Sample Output:

Enter a string: hello world

Original string: hello world

Converted string: HELLO WORLD

Hints:

Remember to null$-$terminate the strings after copying.

Consider the ASCII values for lowercase and uppercase letters when performing the case conversion.

Use the Irvine$32$ library functions for input and output operations.

Additional Constraints:

Do not use any high$-$level constructs or macros that hide the assembly logic.

Ensure your code is well$-$commented and follows best practices for readability and maintainability.

Submit your assembly code file with appropriate comments explaining each part of your code.