C11112331333132311331333132313331333131133131133133312113313221   >>    C1111233133313231133133313231333133313113313113313331211331322   <<    C11112331333132311331333132313331333131133131133133312113313223   >>      C11112331333132311331333132313331333131133131133133312113313222   >>