Code for a sequence of numbers

I want to write a code for a sequence of number.

The sequence is like this:

y = x*u so i find u if i make the divison between u=y/x.

The next sequence :

y(1) = x(0)*u(1) + x(1)*u(0) and i want to find u(1) = (y(1) - x(1)*u(0))) / x(0)

The next one

u(2) = (y(2)-u(1)*x(1)-u(0)*x(2)) / x(0)

The inputs are y and u

Y = input('Enter y: '); %input vector Y and U

U = input('Enter u: ') ;

LenY = length(Y); %defining their lenghts

LenU = length(U);

x = zeros(1,LenY-LenH+1); %defing vector y of zeroes and of size

% lenth of Y - length of U

t = zeros(1,LenU); % definign a vector t of same length as U

...

Thats not the convolution or deconvolution, this 2 codes uses the long polynomial multipilikation and division