#include<stdio.h>
#include<string.h>
// #define int long long
#define rep(i,n) for(int i = 0; i < n; i++)
#define INF (long long)(1e18)
#define MOD (int)(1e9+7)
#define min(a,b) (a>b?b:a)
#define max(a,b) (a>b?a:b)
#define yn(f) (f?"Yes":"No")
#define YN(f) (f?"YES":"NO")
#define pro "はいプロ　世界一○○が上手　○○界のtourist　○○時代の終焉を告げる者　実質○○　○○するために生まれてきた男"
#define Answer_to_the_Ultimate_Question_of_Life_the_Universe_and_Everything 42
#define MAX 1000010


char n[MAX], k[MAX];
signed main(){
	int x[8] = {2,8,5,7,1,4};
	int nsize, ksize, a;
	int 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;
}