while(line=readline()){ // console.log(line); var arr = []; for(let i=0;i<line;i++){ arr.push(readline()); } var newarr = [...new Set(arr)]; newarr.sort((a,b)=>{ return a-b }) for(let i=0;i<newarr.length;i++){ console.log(newarr[i]); } }