void swap(int* num1,int* num2)
{
    int temp;
    temp = *num1;
    *num1 = *num2;
    *num2 = temp;
}

int main()
{
    int a;
    int b;
    scanf("a=%d,b=%d",&a,&b);
    swap(&a,&b);
    printf("a=%d,b=%d",a,b);
    return 0;
}