#include <stdio.h>
#include <string.h>
int main(void)
{
	printf("%d\n", 100 + 100 + 400);
	printf("%f\n", -1e-4 + 3.2);
	char *s = "hello";
	printf("hello\n%s\nis\n%d\nchars long\n", s, strlen(s));
	return 0;
}