Finding the position of valaue

i have two values 

A=[50 90 45 10 5 15 20];

B=[10 90 45 50 5 20 15];

   I have to find the position of A in B ,for example position of 50 in B is 4,position of 90 in B is 2

so the output will be

c=4 2 3 1 5 7 6

please provide assistance

Answer 1

[Azzi Abdelmalek]

 out=arrayfun(@(x) find(B==A(x)),1:numel(A))

Answer 2

[Andrei Bobrov]

[out,out] = ismember(B,A);