/* 
 * Program Swap Numbers in Cyclic Order Using Call by Reference 
 */

#include <stdio.h>

	void cyclicSwap(int *a, int *b, int *c);

/* Entry point to program */
int main()
{
	int a, b, c;

	printf("Enter a, b and c respectively: ");
	scanf("%d %d %d", &a, &b, &c);
	printf("Value before swapping:\n");
	printf("a = %d \nb = %d \nc = %d\n", a, b, c);

	cyclicSwap(&a, &b, &c);

	printf("Value after swapping:\n");
	printf("a = %d \nb = %d \nc = %d \n", a, b, c);

	cyclicSwap(&a, &b, &c);

	printf("\nValue after next swapping:\n");
	printf("a = %d \nb = %d \nc = %d", a, b, c);

	return 0;
}

void cyclicSwap(int *n1, int *n2, int *n3) 
{
	int temp;
	
	/* Swapping in cyclic order */
	temp = *n2;
	*n2 = *n1;
	*n1 = *n3;
	*n3 = temp;
}