L=[];C=[]
n,m=map(int,input().split())
for i in range(n):
    l=[*map(int,input().split())]
    for k in range(m):
        j=l[k]
        if j not in L:
            L+=[j]
            C+=[[]]
        C[L.index(j)]+=[[i,k]]
A=0
for i in range(len(C)):
    I=C[i];l=len(I)
    for j in range(l):
        x,y=I[j]
        for k in range(j+1,l):
            p,q=I[k]
            A+=abs(x-p)+abs(y-q)
print(A)