format long;

% n = 40;
n = 73;

a = zeros(1,n);
b = zeros(1,n);

a(1) = 1;
% a(2) = 1.01;
% a(2) = 1.1;
% a(2) = 2;
  a(2) = 1.5;
for i = 3:n
  a(i) = a(i-1)+a(i-2);
end

b(n) = a(n);
b(n-1) = a(n-1);
for i = n-2:-1:1
  b(i) = b(i+2)-b(i+1);
end

a0 = a(2)-a(1)
b0 = b(2)-b(1)