C111112111133131121133133313331333131333132322331323223313222321   >>    C11111211113313112113313331333133313133313232233132322331322232   <<    C111112111133131121133133313331333131333132322331323223313222323   >>      C111112111133131121133133313331333131333132322331323223313222322   >>