Given the following data, identify the company with the highest profit in 2021 and provide its CEO's name:
a) "Company X, led by CEO NAME_1, reported a profit of $3 billion in 2021."
b) "Company Y, under the leadership of CEO NAME_2, announced a profit of $3.5 billion in the same year."
c) "Company Z, with CEO NAME_3 at its helm, posted a profit of $4 billion in 2021." Provide two versions of response separated with exactly 6 asterisk symbols: ******.
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