C31232233133313221211113313331333133313332321333131133132313331323113211   >>    C3123223313331322121111331333133313331333232133313113313231333132311321   <<    C31232233133313221211113313331333133313332321333131133132313331323113213   >>      C31232233133313221211113313331333133313332321333131133132313331323113212   >>