import itertools
H,W,K = map(int, input().split())
L = list(itertools.product(range(K), repeat=H*W))
ans = 0
s=set()
for l in L:
    l = list(l)
    for k in range(K):
        if l.count(k)==0:
            break
    else:
        if not ''.join(map(str, l)) in s:
            ans+=1
            M = [[0] * W for _ in range(H)]
            for i in range(H):
                for j in range(W):
                    M[i][j]=l[i*W+j]
            for i in range(H):
                M[i] = M[i]*2
                M.append(M[i])
            for i in range(H):
                for j in range(W):
                    t = []
                    for y in range(H):
                        for x in range(W):
                            t.append(M[i+y][j+x])
                    s.add(''.join(map(str, t)))
print(ans)