input: Write a python function to check if two sequences are identical in terms of length and elements.
  assert check_seq([1, 2, 3], [1, 2, 3]) == True
  assert check_seq([1, 2, 3], [1, 2, 4]) == False
  assert check_seq([1, 2, 3], [1, 2]) == False
  assert check_seq([], []) == True
output: def check_seq(seq1, seq2):
      return seq1 == seq2