# 1 "<stdin>"

do { _foo_X (); } while ( 0);


do { _foo_Y (); } while ( 0);


do { _foo_(); } while ( 0);




(111 FIRST 111);
(222 SECOND 222);
(111 (222 THIRD 222) 111);
(222 (111 FOURTH 111) 222);

.