main()
{
	int a,b,c;
	
	a = 12;
	b = 3;

	c = a+b;
	c = a-b;
	c = a*b;
	c = a/b;
	c = a%b;

	c = 12*a+b/2-a*b*2/(a*c+b*2);

	a = a + 1;	/* arttirma islemleri */
	b = b * 5;
	
	a = b = c = 20;	/* Coklu atamalar */
	a = b = c = 12*13/4;
}