Description: You are given an operation that implements a single-qubit unitary transformation: either the identity (I gate) or one of the Pauli gates (X, Y or Z gate). The operation will have Adjoint and Controlled variants defined. Your task is to perform necessary operations and measurements to figure out which unitary it was and to return - 0 if it was the I gate, - 1 if it was the X gate, - 2 if it was the Y gate, - 3 if it was the Z gate. You are allowed to apply the given operation and its adjoint/controlled variants exactly once. You have to implement an operation which takes a single-qubit operation as an input and returns an integer. Your code should have the following signature: Input Format: None Output Format: None Note: None