#include<stdio.h>
#include<string.h>
#define MAX 1000010
char n[MAX], k[MAX];
signed main(){
	int x[8] = {2,8,5,7,1,4};
	int ksize, N = 0, K = 0;
	scanf("%s %s", n, k);
	ksize = strlen(k);
	for(int i = 0; n[i] != '\0'; i++)
		N = (N*10 + n[i]-'0')%6;
	if(N==2 && (k[ksize-1]-'0')%2==0) N = 4;
	if(N==5 && (k[ksize-1]-'0')%2==0) N = 1;
	printf("%d\n",x[(N+5)%6]);
	return 0;
}