C313212111133131211331333133313331333133311233133313113313232321333132313222321   >>    C31321211113313121133133313331333133313331123313331311331323232133313231322232   <<    C313212111133131211331333133313331333133311233133313113313232321333132313222323   >>      C313212111133131211331333133313331333133311233133313113313232321333132313222322   >>