how to make titanic part 1/15

the measurments are:
Front
count 4 from the front of the keel and on the 4 th block start building
4,4,5,4,4,4,6,6,5,5,6,7,7,11,10,14,10,10,12,17,15 And then place back 154 blocks.
Back
9,11,9,9,7,8,9,6,6,8,6,7,5,7,6,5,4,3,4,4,5