move all pictures from other folder based on variable value

hello, i want to know what is wrong in my code?

d = dir('C:\Users\mark\Desktop\DATABASE')
n = length(d)-2
n=num2str(n)
mkdir('C:\Users\mark\Desktop\DATABASE',n)

 movefile('C:\Users\mark\addnew\*jpg','C:\Users\mark27\Desktop\DATABASE\',n)

[Sara]

Try

movefile('C:\Users\mark\addnew\*jpg',['C:\Users\mark27\Desktop\DATABASE\',n])

[mark]

thankyou sara :*