Each exclamation mark weight is 2; Each question mark weight is 3. Put two string left and right to the balance, Are they balanced?
If the left side is more heavy, return "Left"; If the right side is more heavy, return "Right"; If they are balanced, return "Balance".
Examples balance("!!","??") === "Right" balance("!??","?!!") === "Left" balance("!?!!","?!?") === "Left" balance("!!???!????","??!!?!!!!!!!") === "Balance"