const rl = require('readline').createInterface({ input:process.stdin }) rl.on('line',line=>{ var nodeArr = line.split(' ') var len = nodeArr.splice(0,1)[0] var firstNode = nodeArr.splice(0,1)[0] var delNode = nodeArr.pop() // console.log(nodeArr) var newTable =[] newTable.push(firstNode) for(i=0;i<nodeArr.length;i+=2){ newTable.splice(newTable.indexOf(nodeArr[i+1])+1,0,nodeArr[i]) } newTable.splice(newTable.indexOf(delNode),1) console.log(newTable.join(' ')) })