false Explanation: In each step left shift is applied to rows 0 and 2 (even indices), and right shift to row 1 (odd index).

$$ \begin{array}{|c|c|c|} \hline 1 & 2 & 3 \\ \hline 4 & 5 & 6 \\ \hline 7 & 8 & 9 \\ \hline \end{array} \rightarrow \begin{array}{|c|c|c|} \hline 2 & 3 & 1 \\ \hline 6 & 4 & 5 \\ \hline 8 & 9 & 7 \\ \hline \end{array} \rightarrow \begin{array}{|c|c|c|} \hline 3 & 1 & 2 \\ \hline 5 & 6 & 4 \\ \hline 9 & 7 & 8 \\ \hline \end{array} \rightarrow \begin{array}{|c|c|c|} \hline 1 & 2 & 3 \\ \hline 4 & 5 & 6 \\ \hline 7 & 8 & 9 \\ \hline \end{array} \rightarrow \begin{array}{|c|c|c|} \hline 2 & 3 & 1 \\ \hline 6 & 4 & 5 \\ \hline 8 & 9 & 7 \\ \hline \end{array} $$

Example 2

Input: mat = [[1,2,1,2],[

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