Input	S is two dimensional matrix with m rows and n columns, Mxy and M𝑣w
Output	Updated matrix S
1	if MT = null then
2	copy(Mxy, M′xy)
3	MT←Mxy.
4	end if
5	for i = 0 to n
6	for j = 0 to m
7	if MT ≠ null then
8	copy(M𝑣w, M′𝑣w)
9	M𝑣w←MT
10	M′xy←M′𝑣w
11	notify(M𝑣w.IP, Cxy)
12	notify(Mxy.IP, C𝑣w)
13	end if
14	end for
15	end for
16	return S