Minimal dfa construction


#1

construct a minimal dfa which accepts set of all string over {a,b,c} such that 2nd symbol from rhs is a and 5th symbol from rhs is b and 7th symbol from rhs is c.


#2

Regular Expression: (a+b+c)*©(a+b+c)(b)(a+b+c)2(a)(a+b+c)
DFA: