C3123223313331322121111331333133313231333132212111112113313232221231   >>    C312322331333132212111133133313331323133313221211111211331323222123   <<    C3123223313331322121111331333133313231333132212111112113313232221233   >>      C3123223313331322121111331333133313231333132212111112113313232221232   >>