C1111133313331323223313331333133313331333131133133313211232311321   >>    C111113331333132322331333133313331333133313113313331321123231132   <<    C1111133313331323223313331333133313331333131133133313211232311323   >>      C1111133313331323223313331333133313331333131133133313211232311322   >>