Use 2 as the 7th digit. Need the answer by 20 mins

If the 7th digit of your NSU id is even then use L=L1 and s = sl, otherwise use L = L2 and s = $2 2. Show that the following grammar is ambiguous. set of terminals, T = {( ), +, s, id), set of non-terminals, V = {S, E), start symbol =S, set of rules, R = {S (E), E E+EE- Eid}