s=[int(s) for s in input().strip().split()]
s.extend([int(s) for s in input().strip().split()])
s.extend([int(s) for s in input().strip().split()])
magicsquares=[]
costs=[]
for a in [2,4,6,8]:
    for b in [2,4,6,8]: 
        if a+b!=10 and a!=b:
            m=[a,15-a-b, b, 15-a-(10-b), 5, 15-b-(10-a), 10-b, 10-(15-a-b), 10-a]
            magicsquares.append(m)
            costs.append(sum([abs(x-y) for x,y in zip(s,m)]))
print(min(costs))