新手请教一个公式问题

哗英雄

这是一个双色格的问题，我想在BN:CA共14个单元格里提取前面的数字自动生成为500W缩水条件格式，请会的朋友帮我修改下公式，以下这公式是在当BN:CA单元格出现14个数字才能实现，我想把它改为当BN:CA单元格出现14或小于14个数字时能自动实现

=IF(A31="","",TEXT(SMALL(BN31:CA31,1),"00")&","&TEXT(SMALL(BN31:CA31,2),"00")&","&TEXT(SMALL(BN31:CA31,3),"00")&","&TEXT(SMALL(BN31:CA31,4),"00")&","&TEXT(SMALL(BN31:CA31,5),"00")&","&TEXT(SMALL(BN31:CA31,6),"00")&","&TEXT(SMALL(BN31:CA31,7),"00")&","&TEXT(SMALL(BN31:CA31,8),"00")&","&TEXT(SMALL(BN31:CA31,9),"00")&","&TEXT(SMALL(BN31:CA31,10),"00")&","&TEXT(SMALL(BN31:CA31,11),"00")&","&TEXT(SMALL(BN31:CA31,12),"00")&","&TEXT(SMALL(BN31:CA31,13),"00")&","&TEXT(SMALL(BN31:CA31,14),"00")&"/1~2~3~4")
请会的朋友帮我改下，谢谢