C11112331333132311331333133313331333132311213331333133312111113331331121123331   >>    C1111233133313231133133313331333133313231121333133313331211111333133112112333   <<    C11112331333132311331333133313331333132311213331333133312111113331331121123333   >>      C11112331333132311331333133313331333132311213331333133312111113331331121123332   >>