C1111133313331323223313331333133313331323131211113313133313332112321   >>    C111113331333132322331333133313331333132313121111331313331333211232   <<    C1111133313331323223313331333133313331323131211113313133313332112323   >>      C1111133313331323223313331333133313331323131211113313133313332112322   >>