\begin{array}{l l l l l l l l l l}{\,\,\,\, (4}&{\,\,\,\,\, F}&{\,\,\,\,\, B}&{.}&{\,\,\,\,\, C}&{\,\,\,\,\, A)_{16}}\\{\,\,\,\,\, \downarrow}&{\,\,\,\,\, \downarrow}&{\,\,\,\,\, \downarrow}&{}&{\,\,\,\,\, \downarrow}&{\,\,\,\,\, \downarrow}\\ {0100}&{1111}&{1011}&{.}&{1100}&{1010}\end{array}