#include<stdio.h>
int main(){
    int x,y,temp;
    printf(" ");
    scanf("%d", &x);
    printf(" ");
    scanf("%d", &y);
    if (x < -100 || x > 100 || y < - 100 || y > 100){
        printf("Invalid Input\n");
        reurn 1;
    }
    temp = x;
    x = y;
    y = temp;
    printf("%d\n", x);
    printf("%d\n", y);
    return 0;
}