**Input:** Two qubits in the $|00\rangle$ state (stored in an array of length 2).

**Goal:** Change the state of the qubits to $\frac{1}{2} \big(|00\rangle + i|01\rangle - |10\rangle - i|11\rangle\big)$.

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<details>
  <summary><b>Need a hint? Click here</b></summary>
  Is this state separable?
</details>
