2. (15 points) Consider the following e-NFA that accepts decimal numbers: 0,1,...,9 0,1,...,9 , +,- 0,1,...,9 start 90 91 42 43 95 0,1,...,9 94 Note that +, - signs are optional. Also note that either of the string of digits before and the string of digits after can be empty but at least one of them must be nonempty. Find e-CLOSURE of each state and convert the e-NFA to an equivalent DFA using the modified subset constuction process. Show your work for full credit