#include <stdio.h>
int main()
{
int red, blue, green, temp;
temp=0;
red=1;
blue=2;
green=3;
printf("before\n red=%d, blue=%d, green=%d\n", red, blue, green);
temp=red;
red=blue;
blue=green;
green=temp;
printf("after\n red=%d, blue=%d, green=%d\n", red, blue, green);
return 0;
}
