class Main{
    main():int{{a; a; if a then b else c fi; while a loop a pool;}}; 
				    --error at int
    main():Int{{a; a; if a then b else c fi; while a loop a pool;}};
    main():Int{a;{a;{a;{a;a;a;}}}}; --missing ;
    main() : Int {{a; a;}};	
    main() : Int {{a a}}; --error in block	
    main() : Int {{a; a}}; --missing ;	
    main() : Int {{a}};	--missing ;
    main() : Int {{45}}; --missing ;	
};