C31232233133313221211113313331333132313331333133313331333133311211312321   >>    C3123223313331322121111331333133313231333133313331333133313331121131232   <<    C31232233133313221211113313331333132313331333133313331333133311211312323   >>      C31232233133313221211113313331333132313331333133313331333133311211312322   >>