C1111233131211111211113313331323133313232212111112113313113313232231   >>    C111123313121111121111331333132313331323221211111211331311331323223   <<    C1111233131211111211113313331323133313232212111112113313113313232233   >>      C1111233131211111211113313331323133313232212111112113313113313232232   >>