There is playground of length N=10. Given two different squares of length 1, the other of length 2, and the number of the two kinds of squares is not limited. If the children want to lay the squares out in the playground, a total of how many different ways to place the squares?

For example, the ground of length 4 has a total of 5 types of laying methods as follows

4=1+1+1+1

4=2+2

4=2+1+1

4=1+2+1

4=1+1+2