EBNF rules for simple integer arithmetic expressions exprexpr + tom term term-term factor factor factor expenumber 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: Q1: Modify the above BNF, EBNF and Syntax Diagrams by adding subtraction and division operations to the simple integer arithmetic expressions. Be sure to give them the appropriate precedence. 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 223 256, not 64)