C111123313121111121111331333133313331323133313231333133313331333132313312321   >>    C11112331312111112111133133313331333132313331323133313331333133313231331232   <<    C111123313121111121111331333133313331323133313231333133313331333132313312323   >>      C111123313121111121111331333133313331323133313231333133313331333132313312322   >>