C31232233133313221211113313331333132313331322121111331313331323113313232333131   >>    C3123223313331322121111331333133313231333132212111133131333132311331323233313   <<    C31232233133313221211113313331333132313331322121111331313331323113313232333133   >>      C31232233133313221211113313331333132313331322121111331313331323113313232333132   >>