C111123313121111121111331333133313331333131233133313113313331123313231333221   >>    C11112331312111112111133133313331333133313123313331311331333112331323133322   <<    C111123313121111121111331333133313331333131233133313113313331123313231333223   >>      C111123313121111121111331333133313331333131233133313113313331123313231333222   >>