C11112331333132311331333133313231333131133131211111333132312323221   >>    C1111233133313231133133313331323133313113313121111133313231232322   <<    C11112331333132311331333133313231333131133131211111333132312323223   >>      C11112331333132311331333133313231333131133131211111333132312323222   >>