#include <stdio.h>

int test(int, double, ...);\
/* here is a nice
comment it is
here
*/
int main(void) {
	printf("\"Hello, world!%c\n\"", '\'');
	_X55 = Y4_C_;
	a.b = c;
	5 + (.3e+5+6) & 0xff | 93 -~5;
	return 0;
}