C312322331333132212111133133313331333131121132313231333132331221   >>    C31232233133313221211113313331333133313112113231323133313233122   <<    C312322331333132212111133133313331333131121132313231333132331223   >>      C312322331333132212111133133313331333131121132313231333132331222   >>