C11112331333132311331333132313331333131133131133133313232233221   >>    C1111233133313231133133313231333133313113313113313331323223322   <<    C11112331333132311331333132313331333131133131133133313232233223   >>      C11112331333132311331333132313331333131133131133133313232233222   >>