Write a function in python that takes two strings representing roman numbers and returns their sum. For full credit, return the sum of the two numbers as an int. For 1 point of extra credit write a function that takes two strings and return a string with the roman numeral of the sum instead. (You may assume all inputs are valid roman numeral strings that represent numbers less than 400/CD.)

For Example:

romanfunction('I','XI') #returns 12 (Full Credit Version)

romanfunction('I','IX') #returns 10 (Full Credit Version)

romanfunctionextra('I','IX') #returns 'X' (Extra Credit Version)