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A doped electron creates an orbitally non degenerate S=7\\half state in a F$_4$Se$_9$ cluster and moves in a single correlated band, exchange coupled to a robust S=8 AFM order. Skyrmion, a topological excitation of 2 dimensional AFM order acquires an \\textit{induced charge -2e} through a quantum anomaly and becomes a Cooper pair. 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