#include <stdio.h>
int main(){
    int a,b,arr;
    scanf("%d",&a);
    scanf("%d",&b);
    printf("%d ",a);
    printf("%d",b);
    return 0;
    int swap;
    scanf("%d",&b);
    scanf("%d",&a);
    swap=b,a;
    arr[2]=b,a;
    return 0;
    
}