pls F1me writing this Exploration

["wsb3000@xxxxx" <wsb3000@xxxxxxxxx>]

Hi

i am trying to use the Explorer to find all stocks with the 
following:
1- c - mov(c,60,s)<0
2 Above condition should be in place for 20days

I use c - Mov(c,60,s)<0  but how do i write the second?


thanks in advance

wsb