\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 73 \\ 46 \end{array} \\ \begin{array}{r}  \end{array} \end{array}

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 81 \\ 19 \end{array} \\ \begin{array}{r}  \end{array} \end{array}

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 92 \\ 18 \end{array} \\ \begin{array}{r}  \end{array} \end{array}

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 64 \\ 26 \end{array} \\ \begin{array}{r}  \end{array} \end{array}

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 45 \\ 27 \end{array} \\ \begin{array}{r}  \end{array} \end{array}

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 75 \\ 15 \end{array} \\ \begin{array}{r}  \end{array} \end{array}

- 73 46 + 81 19 - 92 18 + 64 26 - 45 27 + 75 15

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 73 \\ 46 \end{array} \\ \begin{array}{r} 27 \end{array} \end{array}

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 81 \\ 19 \end{array} \\ \begin{array}{r} 100 \end{array} \end{array}

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 92 \\ 18 \end{array} \\ \begin{array}{r} 74 \end{array} \end{array}

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 64 \\ 26 \end{array} \\ \begin{array}{r} 90 \end{array} \end{array}

\begin{array}{r} \begin{array}{r} - \end{array} \begin{array}{r} 45 \\ 27 \end{array} \\ \begin{array}{r} 18 \end{array} \end{array}

\begin{array}{r} \begin{array}{r} + \end{array} \begin{array}{r} 75 \\ 15 \end{array} \\ \begin{array}{r} 90 \end{array} \end{array}