C1111133313331323223313331333133313311211111211331333131133132322131   >>    C111113331333132322331333133313331331121111121133133313113313232213   <<    C1111133313331323223313331333133313311211111211331333131133132322133   >>      C1111133313331323223313331333133313311211111211331333131133132322132   >>