from numpy import *
from numpy.linalg import *

x=int(input(":"))
y=int(input(":"))
mat=array([[0,2,11,6,15,11,1],[2,0,7,12,4,2,15],[11,7,0,11,8,3,13],[6,12,11,0,10,2,1],[15,4,8,10,0,5,13],[11,2,3,2,5,0,14],[1,15,13,1,13,14,0]])
a=1
b=0
aux=111
vet=zeros(7,dtype=int)
for i in range(7):
	vet[i]=aux
	aux+=111
for i in range(7):
	if(x==vet[i]):
		a=i
	if(y==vet[i]):
		b=i
		
print(mat[a,b])