from numpy import*
from numpy.linalg import*
v = 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]])
d = 0
citya = int(input("ss: "))
cityb = int(input("ssss: "))
while(cityb != -1):
	d = d + v[(citya//100)-1, (cityb//100)-1] 
	citya = cityb
	cityb = int(input("cityb: "))
print(d)