def rotateList(A):
    '''
    num = A.pop(len(A)-1)
    A.insert(0,num)
    return A
    '''
    
    B = [0,0,0,0,0,0,0,0]
    B[0] = A[3]
    B[1] = A[0]
    B[2] = A[1]
    B[3] = A[5]
    B[4] = A[2]
    B[5] = A[6]
    B[6] = A[7]
    B[7] = A[4]
    return B

def mirrorHor(A):
    B = [0,0,0,0,0,0,0,0]
    B[0] = A[2]
    B[2] = A[0]
    B[3] = A[4]
    B[4] = A[3]
    B[5] = A[7]
    B[7] = A[5]
    B[1] = A[1]
    B[6] = A[6]
    return B
    

def printSQ(A):
    print(A[0],A[1],A[2])
    print(A[3],5,A[4])
    print(A[5],A[6],A[7])

## Read input
A = []
good = [4,9,2,3,7,8,1,6]

for i in range(3):
    line = input().strip().split()
    line = [int(line[0]), int(line[1]), int(line[2])]
    for ii in line:
        A.append(ii)

        
cost = abs(5-A[4])
A.pop(4)

#print(A)
#printSQ(A)
#print()

minimum = 81
for i in range(8):
    #print(i)
    #printSQ(good)
    test = 0
    for j in range(8):
        test += abs(A[j] - good[j] )
    if test < minimum:
        minimum = test
    good = rotateList(good)
    good = rotateList(good)
    
    if i % 4 == 3:
        if i - 3 == 0:
            good = mirrorHor(good)
        
    #print()

#print(A)
print(cost+minimum)