C1111133313331323223313331333133313311211111211331333131133131121322321311231   >>    C111113331333132322331333133313331331121111121133133313113313112132232131123   <<    C1111133313331323223313331333133313311211111211331333131133131121322321311233   >>      C1111133313331323223313331333133313311211111211331333131133131121322321311232   >>