0 <-> OffPeak 1 <-> OnPeak 2 <-> Y4S_Scan 3 <-> Y3S_OffPeak 4 <-> Y3S_OnPeak 5 <-> Y3S_Scan 6 <-> Y2S_OffPeak 7 <-> Y2S_OnPeak 8 <-> Y2S_Scan 9 <-> FinalScan