$A	Age (max min)
$C	Connect Rate (max min)
$N	Node (max min)
$S	Sex
$T	Time Left (max min)
$U	User Number (max min)
$Y	Time of Day (max min)

letter by itself is a flag
number by itself is a lettter

A
34
A & 34
A AND 34
A AND !99
A AND NOT 99
A | B
A OR B
($A21 & $GF & $N1 & T>60) | A

!$A18
$T50
