C313212111133131211331333133313331333132212113313331323133313331333133321121   >>    C31321211113313121133133313331333133313221211331333132313331333133313332112   <<    C313212111133131211331333133313331333132212113313331323133313331333133321123   >>      C313212111133131211331333133313331333132212113313331323133313331333133321122   >>