C312322331333132212111133133313331323133313233313331323132322321111331313232321   >>    C31232233133313221211113313331333132313331323331333132313232232111133131323232   <<    C312322331333132212111133133313331323133313233313331323132322321111331313232323   >>      C312322331333132212111133133313331323133313233313331323132322321111331313232322   >>