C111123313331323113313331313331333132313311211113313231333131212111   >>    C11112331333132311331333131333133313231331121111331323133313121211   <<    C111123313331323113313331313331333132313311211113313231333131212113   >>      C111123313331323113313331313331333132313311211113313231333131212112   >>