@ makes problem in ios

I am trying to get some values using post
My url is

http://myweb.info/WNWS/WNS/RequestFBUser?UN=sona.mv&E=sona@gmail.com&FBN=SonaMv&FBI=100003833776130&FN=Sona&LN=Mv&DID=8f0043b4-84bc-461f-a7d0-477dadab9687&DT=I

code is

void facebookLogin(string input){
	WWW www = new WWW(input);
	StartCoroutine(WaitForFbLogin(www));
}

Getting error
The operation couldn’t be completed. No such file or directory

The problem with symbol “@”

How can i escape from this?

See this (URL encoding in general) - try "%40" instead of "@"