Square root of unitary matrix

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It is known fact that if $U$ unitary matrix in $M_n(C)$ (i.e. $UU^*=U^*U=I$) then $U$ has square root $V$ which is also unitary matrix. But suppose that $U$ unitary matrix and $V\in M_n(C)$ such that $U=V^2$. Then is it true that the $V$ is also unitary matrix? thanks in advance.

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No, e.g. with $$V=\pmatrix{1&1\\0&-1}$$ we have $V^2=I$ which is unitary but $V$ is not.