foreign fn wait(x: Int) Int;
foreign fn print(str: String) Void;
foreign fn slen(str: String) Int;
# foreign fn charAt(str: String) Char;
foreign fn parse_int(str: String) Int;
foreign fn termpos(x: Int, y: Int);
foreign fn as_int(x: Float) Int;
foreign fn istr(x: Int) String;
foreign fn system(cmd: String) Int;

foreign fn termclear() Void;