How to pad the sequence to the fixed length in tensorflow?

Question

tf.Tensor(
[[                  0  0  0  0 16 50 21
  25 25 27 27 37 37 49 49 50 54 11 44 59  0 17 17]
 [ 36 37 38 38 38 39 40 40 40 41 44 44 45 45 49 49 49 52  3 15