C111123313331323113313331333133313331323123231333131133132313232221   >>    C11112331333132311331333133313331333132312323133313113313231323222   <<    C111123313331323113313331333133313331323123231333131133132313232223   >>      C111123313331323113313331333133313331323123231333131133132313232222   >>