\begin{array}{rr}
{\phantom{\text{fail}}H} & A \\
{\phantom{\text{fail}}T} & I \\
{\phantom{\text{fail}}U} & Y \\
\end{array} = \begin{array}{ll}
A & {H\phantom{\text{fail}}} \\
I & {T\phantom{\text{fail}}} \\
Y & {U\phantom{\text{fail}}} \\
\end{array}
