A.Group1-Slots 0 & 1 Group 2 - Slot 2 Group 3- Slot 3 Group 4 - Slot 4
B.Group1-Slots 2 & 3Group 2- Slot 4 Group 3-Slot 5 Group 4 - Slot 6
C.Group1-Slot 2 Group 2- Slot 3 Group 3 - Slot 4 Group 4 - Slot 5 & 6
D.Group1-Slot 3 Group 2 - Slot 4 Group 3 -Slot 5 Group 4 - Slots 6 & 7