% step 1: define matrix m
m = [116, 32, 97, 103; 67, 82, 65, 80; 82, 105, 103, 104; 97, 105, 110, 33];
% step 2: extract rows:
n = [ m(3,:), m(1,:), m(4,:) ];
% pass vector n to function char()
char(n)
% Output: "Right again!"