def generate_table(row, column):
  if row < 1 or column < 1:
    return None
  table = []
  for _ in range(row):
    table.append([0] * column)
  for _ in range(1000):
    r, c, inc = randint(0, row - 1), randint(0, column - 1), randint(0, 10)
    table[r][c] += inc
  return table


def pretty_print(table):
  for row in table:
    for v in row:
      print('{:>6}'.format(v), end='')
    print()


pretty_print(generate_table(5, 10))