C11111211113313112113313331333133313331333132212111133133313112113313111221   >>    C1111121111331311211331333133313331333133313221211113313331311211331311122   <<    C11111211113313112113313331333133313331333132212111133133313112113313111223   >>      C11111211113313112113313331333133313331333132212111133133313112113313111222   >>