C31232233133313221211113313331333133313332321333131133132313231312321   >>    C3123223313331322121111331333133313331333232133313113313231323131232   <<    C31232233133313221211113313331333133313332321333131133132313231312323   >>      C31232233133313221211113313331333133313332321333131133132313231312322   >>