obfuscate ( oldPassword )

var oldPassword = process.argv[2];
var pass = obfuscate(oldPassword);

function obfuscate(password){
  var newPassword = "";
  for (var x = 0; x < password.length; x++){
    if (password[x] == "a") {
      newPassword += "4";
    } else if (password[x] == "e"){
      newPassword += "3";
    } else if (password[x] == "o"){
      newPassword += "0";
    } else if (password[x] == "l"){
      newPassword += "1";
    } else {
      newPassword += password[x];
    }
  }
      return newPassword ;
}

console.log ("Your new password is " + pass);