C31232233133313221211113313331333132313331333133313231311213231   >>    C3123223313331322121111331333133313231333133313331323131121323   <<    C31232233133313221211113313331333132313331333133313231311213233   >>      C31232233133313221211113313331333132313331333133313231311213232   >>