C111123313121111121111331333132313331323112121111331333133311221123122321   >>    C11112331312111112111133133313231333132311212111133133313331122112312232   <<    C111123313121111121111331333132313331323112121111331333133311221123122323   >>      C111123313121111121111331333132313331323112121111331333133311221123122322   >>