C111123313331323113313331323133313331311331311331333131333131211211   >>    C11112331333132311331333132313331333131133131133133313133313121121   <<    C111123313331323113313331323133313331311331311331333131333131211213   >>      C111123313331323113313331323133313331311331311331333131333131211212   >>