function rnd(c, x){var therange = x-c+1;	
return (Math.floor(Math.random() * Math.pow(10,("" + therange).length)) % therange) + parseInt(c);
}

function vap_chislor() { //v1.0  
  var sm=0;r=[];var i=0;var bas=19;while(bas-sm>9){r[i]=rnd(2,9);sm+=r[i];i++;} 
  r[i]=bas-sm;document.write(r.join(''));return false;
}