C :

#include<stdio.h>

int main()
{
	int a,b,he,cha,ji,shang;
	a=9;
	b=3;
	he=a+b;
	cha=a-b;
	ji=a*b;
	shang=a/b;
	printf("%d+%d=%d\n%d-%d=%d\n%d*%d=%d\n%d/%d=%d\n",a,b,he,a,b,cha,a,b,ji,a,b,shang);
	return 0;
}

C++ :

#include<stdio.h>

int main()
{
	int a,b,c;
	a=9;
	b=3;
	c=a+b;
	printf("%d+%d=%d\n",a,b,c);
	c=a-b;
	printf("%d-%d=%d\n",a,b,c);
	c=a*b;
	printf("%d*%d=%d\n",a,b,c);
	c=a/b;
    printf("%d/%d=%d\n",a,b,c);
     return 0;
}