import sys
input = sys.stdin.readline
W, H, X = map(int, input().split())
res = [[0] * W for _ in range(H)]
if H >= 3 and W >= 3:
  if X > 9:
    print(-1)
    exit(0)
  for i in range(H):
    for j in range(W):
      if i % 3 == 1 and j % 3 == 1: res[i][j] = X
elif H <= 2:
  if H == 1 and X > 9:
    print(-1)
    exit(0)
  if X > 18:
    print(-1)
    exit(0)
  u = min(9, X)
  d = max(0, X - u)
  for j in range(W):
    if j % 3 == 0:
      res[0][j] = u
      if H > 1: res[1][j] = d
elif W <= 2:
  if W == 1 and W > 9:
    print(-1)
    exit(0)
  if X > 18:
    print(-1)
    exit(0)
  u = min(9, X)
  d = max(0, X - u)
  for i in range(H):
    if i % 3 == 0:
      res[i][0] = u
      if W > 1: res[i][1] = d
for i in range(H): print(*res[i])