C31232233133313221211113313331333132313331322121111123121111331322331333112121   >>    C3123223313331322121111331333133313231333132212111112312111133132233133311212   <<    C31232233133313221211113313331333132313331322121111123121111331322331333112123   >>      C31232233133313221211113313331333132313331322121111123121111331322331333112122   >>