#include<stdio.h>

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