C111112111133131121133133313331333131333132322331333132322123121121   >>    C11111211113313112113313331333133313133313232233133313232212312112   <<    C111112111133131121133133313331333131333132322331333132322123121123   >>      C111112111133131121133133313331333131333132322331333132322123121122   >>