on *:text:!xp*:#:{
  if ($me != DHelp) { Halt }
  if ($3 == to) {
    if ($2 >= $4) { notice $nick [ERROR] Your level must be less then your goal level! | Halt }
    if ($2 !isnum 0-99) || ($4 !isnum 0-99) { notice $nick [ERROR] Levels 1-99! | halt }
    notice $nick From level $2 to $4 you ned to gain $calc($xp($4) - $xp($2))
  }
  elseif ($2 isnum 0-99) {
    notice $nick $xp($2) experience is needed for level $2 $+ .
  }
  else {
    notice $nick [ERROR] Levels 0-99!
  }
}