Example:
Initial State
JVIOTETSEGONMPYVQMWXLRDCIWYAZZGSKDFHKJULNRCQXUBPFBAH
Keystream
HWICDRTXTMOVVPYWZCSRMXVIPJNAGWZCGRBXFPABWHCSRWXMPVBPHNSGWZMS
VDPHNJGUZNSCMXVBPFNAGWQCWROXVPYFZASWDCHRHXSMEFZAGWKCFRAXWMCV
RYXTMTVPPBQHYSLEBZHSSDEFZKSUDNHCHXSBEFTATWPCBRYXZBSFDAHWJCLR
YGZBGFKAFWKCURCXROXVPYBIHDLMUVQPWQMYQZYGZKSFDKHUJNLCYXIBDFMA
VWPCQRSXDBHFJALWRAZSGEKBFFKAUWNCCCXXMOVVPYQNWGTPTBIHJLAAZZSG
DKHFJKLURNSCGXPBBFHALWUCNRHXJBLFRMZOGEKQFYKBUFNACUXNOCBXHOTV
TYISDEMMOVEMZOGEDZHGJKLFRKQUYNNCVXPBQFWASWECMRLXRNZGGIKJFAKL
UUNBCFXKOUVNYCIXDONVGYIQJYANZGGIKJFAJZLGRKLFUKSUENMCTXTBQFYA
PWBCHNZGGSKEFMKOUENQCGXKOFVKYULNUCSXEOMVOYENZGGSKEFMKOUERZQG
WKQFYKIUJNACLXUBMFVAPNZGGSKEFQKYUINJCRXZOGVKYFQKWUPNBCIXJOAV