C313212111133131211331333133313331333133311233133313311231333132313221221322321   >>    C31321211113313121133133313331333133313331123313331331123133313231322122132232   <<    C313212111133131211331333133313331333133311233133313311231333132313221221322323   >>      C313212111133131211331333133313331333133311233133313311231333132313221221322322   >>