#include <stdio.h>
void Swap(int *a,int *b)
{
    int op;
    op=*a;
    *a=*b;
    *b=op;
}
int main()
{
    int a,b;
    scanf("a=%d,b=%d",&a,&b);
    Swap(&a,&b);
    printf("a=%d,b=%d",a,b);
    return 0;
}