（390＋30）÷7 =4o7H)V7u+o'L/v5t7Z(w8f-h/r7G)~
240÷3÷5 =7J)l-_2]-_,\8n*{4n)A6N7Z(w8f-h/r7G)~
592-812÷4 =-e(o's-?7Z(w8f-h/r7G)~