from numpy import*
from numpy.linalg import*

distancia =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]])



x = 0 
z = int(input("z:"))
w = int(input("w:"))
while( w != -1):
	x = distancia[(z//100) - 1, (w//100) - 1] + x
	z = w 
	w = int(input("w:"))
print(x)	

	
	