Present from Lena

Present_from_Lena.js

// http://codeforces.com/problemset/problem/118/B
function addSpace(str,time) {
  var space="";
  for(var i = 0; i < time; i++)space+=" ";
  return space+str+"\n";
}
function createPalindromic(n){
  var line="",count=n-1;
  for(var i = 0; i < n; i++){
    line+=(i).toString();
    if(i<=count)line+=" ";
  }
  return line+(n).toString()+line.split("").reverse().join("");
}
function printPresent(n){
  var palindromicArray=[],textToPrint="",counter=n*2;
  for (var i = 0; i < n; i++) {
    var line=addSpace(createPalindromic(i),counter);
    palindromicArray.push(line);
    textToPrint+=line;
    counter-=2;
  }
  textToPrint+=addSpace(createPalindromic(n),0);
  for (var i = n-1; i >= 0; i--)textToPrint+=palindromicArray[i];
  return textToPrint.replace(/\n$/,"");
}
//console.log(printPresent(process.argv[2]));
print(printPresent(readline()));