C31232233133313221211113313331333132313331322121111113313311211113313233222311   >>    C3123223313331322121111331333133313231333132212111111331331121111331323322231   <<    C31232233133313221211113313331333132313331322121111113313311211113313233222313   >>      C31232233133313221211113313331333132313331322121111113313311211113313233222312   >>