Hello
I am looking some formula for following in A1

If B1 & C1 are blanks then in A1 "Waiting"
If B1 has any value and C1 is blank then in A1 "Go"
If B1 is blank and C1 has value then in A1 "Back"
If B1 & C1 have any value then in A1 "Finished"

Thanks in advance.