from numpy import*
from numpy.linalg import*
a = array(eval(input("digite a: ")))
b = array(eval(input("digite b: ")))
m = 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]])
soma = 0
a1 = a//(111)-1
b1 = b//(111)-1
while(a!=-1)and(b!=-1):
	soma = soma + m[a1,b1]
	a1 = b//(111)-1
	b = array(eval(input("digite b: ")))
	b1 = b//(111)-1
print(soma)