C11112331333132311331333133313331333132311213331333133313331212113313222313111   >>    C1111233133313231133133313331333133313231121333133313331333121211331322231311   <<    C11112331333132311331333133313331333132311213331333133313331212113313222313113   >>      C11112331333132311331333133313331333132311213331333133313331212113313222313112   >>