Sub Swap (Var1, Var2) Var1 = Var1 Xor Var2 Var2 = Var2 Xor Var1 Var1 = Var1 Xor Var2 End Sub
See: Xor swap algorithm
... switch from folk music to rock music, with Jerry Garcia, Ron Pigpen McKernan and Bob Weir[?] from the Jug Champions joined by Bill Kreutzmann[?] and Phil Lesh, and in 1967 - ...