Given a 2d array, called a, of size nx m, write a script that will print out the 'fence' of a, using nested loops. matlab matrix shortcuts can not be used for this problem (ie a(x,: ) can not be used to get an entire row) (note: the 'fence' is the outer rows and columns) sample output: given a = [5, 4, 6, 7,3; 1,2,3,4,5; 5, 6, 4, 2, 4; 4,5, 3, 2, 1] 5 4 6 7 3 4 5 3 2 4 1