puti @= fn(x: int) {
	 #C("printf(\"%ld\\n\", (long)x);
");
};
putf @= fn(x: float) {
	 #C("printf(\"%f\\n\", (double)x);
");
};
x,z @= fn(x: int, y @ int) int {
  x+y
};

main @= fn() {
	 puti(x(10, 30));
	 a @= x(20, 40);
	 puti(a);
	 puti(z(10, 30));
	 b @= z(20, 40);
	 puti(b);
};