To Get Magic Squares of Order 11 by Half Turning

A magic square of order n is a n×n matrix whose elements are positive integes of 1 to n² and such that sum over each row, each column or each diagonal is equal to n (n*n + 1)/2. A kind of method of magic squares construction is considered. From auxilliary matrix by so called half turning. We can get a magic square of order n though at most 4 steps.