C31232233133313221211113313331333132313331333133313331333133313311221221   >>    C3123223313331322121111331333133313231333133313331333133313331331122122   <<    C31232233133313221211113313331333132313331333133313331333133313311221223   >>      C31232233133313221211113313331333132313331333133313331333133313311221222   >>