C31232233133313221211113313331333132313331322121111331313313321   >>    C3123223313331322121111331333133313231333132212111133131331332   <<    C31232233133313221211113313331333132313331322121111331313313323   >>      C31232233133313221211113313331333132313331322121111331313313322   >>