question: public static String deobfuscate ( String s ) { if ( s . startsWith ( __OBFUSCATE ) ) s = s . substring ( __OBFUSCATE . length ( ) ) ; byte [ ] b = new byte [ s . length ( ) / 2 ] ; int l = 0 ; for ( int i = 0 ; i < s . length ( ) ; i += 4 ) { String x = s . substring ( i , i + 4 ) ; int i0 = Integer . parseInt ( x , 36 ) ; int i1 = ( i0 / 256 ) ; int i2 = ( i0 % 256 ) ; b [ l ++ ] = ( byte ) ( ( i1 + i2 - 254 ) / 2 ) ; } return new String ( b , 0 , l ) ; }
target:  Deobfuscates a given string.