#include <stdio.h>

int a = 100;
int b = 200;
int c = 300;

void tripleSwap() {
      int temp = a;
      a = b;
      b = c;
      c = temp;
  }

int main()
{
	printf("a = %d, b = %d, c = %d\nswapping ...\n", a, b, c);
	tripleSwap();
	printf("a = %d, b = %d, c = %d\nswapping ...\n", a, b, c);
	tripleSwap();
	printf("a = %d, b = %d, c = %d\nswapping ...\n", a, b, c);
	tripleSwap();
	printf("a = %d, b = %d, c = %d\n", a, b, c);
	printf("bye\n");
	return 0;
}