I ... you/your ...난 is a contraction of 나는, meaning “I” or “as for me.” 자네 is an old-fashioned or respectful-yet-familiar way for an older person to address someone, meaning “you” or “your.” This is not a fixed phrase by itself; the words that follow complete the meaning, as in “I’m your boss,” “I’m on your side,” or “I like you.”