#include <stdio.h>

void Swap(int *p,int *q)
{
	int t = *p;
	*p = *q;
	*q = t;
}

int main()
{
	int a,b;
	scanf("%d %d",&a,&b);
	Swap(&a,&b);
	printf("%d %d\n",a,b);
	return 0;
}