C11112331333132311331333133313331333132233131333131133131133131232211   >>    C1111233133313231133133313331333133313223313133313113313113313123221   <<    C11112331333132311331333133313331333132233131333131133131133131232213   >>      C11112331333132311331333133313331333132233131333131133131133131232212   >>