#include<stdio.h>
void swap(float*a,float*b){
    float temp=*a;
    *a=*b;
    *b=temp;
}
int main(){
    float d1,d2;
    if(scanf("%d %d",&d1,&d2)!=2)
    {
        printf("Invalid input");
        return 1;
   
}
    swap(&d1,&d2);
    printf("After swap: Distance 1 = %d meters Distance 2 = %d meters",d1,d2);
    return 0;

}