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This is an interview question. Take a list of strings that represent port ranges like these:
const systemPorts = '11000-11001, 11100-11101, 12000-12010, 13000';
const customerports = '11000-11003, 11100-11106, 12000-12015, 13000-13003';
And return a merged list of ports in the form of a stri...