BNF rules for simple integer arithmetic expressions: expr expr + term term term-term * factor factor factor (expr number number number digit digit digit -0111213141516171819 EBNF rules for simple integer arithmetic expressions: expr term { + term term factor { * factor factor (expr) number number - digit { digit digit -0111213141516171819 Syntax diagrams for a simple integer expression grammar: Q2: Modify the above BNF, EBNF and syntax diagrams by adding the integer remainder and power operations to the simple integer arithmetic expressions. Use % for the remainder operation and "for the power operation. Hint: Note that the remainder operation is left-associative and has the same precedence as multiplication, but that power is right-associative (and has greater precedence than multiplication, so 22 3 = 256, not 64)