#include <stdio.h>

int main()
{
	/* keep values small with short */
	short int a,b,u,s;

	a=150;
	b=300;
	u=a-b;
	s=a-b;
	printf("Unsigned variable u = %u\n",u);
	printf("Signed variable s = %d\n",s);
	return(0);
}