C313212111133131211331333133313331333133311233132313331333132233312321   >>    C31321211113313121133133313331333133313331123313231333133313223331232   <<    C313212111133131211331333133313331333133311233132313331333132233312323   >>      C313212111133131211331333133313331333133311233132313331333132233312322   >>