#include <stdio.h>

void swap(int *a, int *b){
	int temp = *a;
	*a = *b;
	*b = temp;
}

int main(void){
	int a, b;
	scanf("%d", &a);
	scanf("%d", &b);
	
	swap(&a, &b);
	printf("Troca -> a: %d | b: %d\n", a, b);
}