/**

  • @param N Number
  • @return String

*/
var Solution = function(N){

var a
if(N<=26)
{
    a=0
}else
{
    a=parseInt(N/26)
}
var b=N%26
if(b===0)
{
    b=25
}else
{
    b=b-1
}
var c=''
var s="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
if(a===0)
{
    c=c+s[b]
}else
{
    c=c+s[a-1]+s[b]
}
return c

};