C111123313121111121111331333133313331333131233133313113313331333133313231333221   >>    C11112331312111112111133133313331333133313123313331311331333133313331323133322   <<    C111123313121111121111331333133313331333131233133313113313331333133313231333223   >>      C111123313121111121111331333133313331333131233133313113313331333133313231333222   >>