function postit(a){size=a.length;
a=a.toUpperCase();
if(size<6||size>8){return false
}if(!(isNaN(a.charAt(0)))){return false
}if(isNaN(a.charAt(size-3))){return false
}if(!(isNaN(a.charAt(size-2)))){return false
}if(!(isNaN(a.charAt(size-1)))){return false
}if(!(a.charAt(size-4)==" ")){return false
}count1=a.indexOf(" ");
count2=a.lastIndexOf(" ");
if(count1!=count2){return false
}return true
};