Oneday,SunQuangaveCaoCaoanelephant.CaoCaoledtheofficialsandsmallsonCaoChong,togethersee.

　　CaoCaowhohavenotseentheelephant.Thiselephantisbigandtall,thelightthathadlegssothickpillarshall,peopleapproachedtoracewith,butalsooutofthereachofitsbelly.CaoCaosaidthat:"Thiselephantisreallybig,butintheendtherearemultiplewaystodothatyouhavecalleditoneofwhichcalled?"

　　CaoChongthoughtofaway,likeCaoChongledsomeonetotakeonboard,suchasthehullstable,Sarkozyonthesideoftheshipwherethewatercarvedaroundafterround.Tellingpeopletogettheelephantledtotheshore,thelargeandsmallstone,apieceoflandtotheshipequipment,boatsankonalittlebit.SuchashullsanktojustcarvedandwaterlinesinthesamepieceofQi,CaoChongcalledtostoploadingstones.Aslongastheboatwherethestonesweigh,theweightaddsup,youknow,astherearemultipleup.