Find BNF OR EBNF grammars for Ada(available on the web). What is the syntax of the IF statement? Write a legal Ada if statement that look at the integer variables a and b, and
if a is 1, will increment a (a := a+a; )
if b is 3, will decrement b (b := b-1; )
otherwise, will multiply b by 2 (b := 2*b; )