71+?=737,456+?=827,338+?=901
410-52=?,765-130=?,857-328=?
319+483=?,276+512=?,393+613=?
50/5=?,28/2=?,64/?=?
32*3=?,17*6=?,50*4=?
---
?-354=703-420,154+283+327+105=?
725-283=?+322,308+130+242-536=?
138+?+326=803,466+293-145-486=?
248+?-420=283,999-365-203-312=?
梦尽落花间