C31232233133313221211113313331333132313331322121111121133132233313231321   >>    C3123223313331322121111331333133313231333132212111112113313223331323132   <<    C31232233133313221211113313331333132313331322121111121133132233313231323   >>      C31232233133313221211113313331333132313331322121111121133132233313231322   >>