C1111233131211111211113313331333133313331333133313331333121111331323131121221   >>    C111123313121111121111331333133313331333133313331333133312111133132313112122   <<    C1111233131211111211113313331333133313331333133313331333121111331323131121223   >>      C1111233131211111211113313331333133313331333133313331333121111331323131121222   >>