sWAP cASE

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    def swap_case(s): c=s.split() d="" e=[] for j in list(c): for i in j: if i.islower(): d+=i.upper() elif i.isupper(): d+=i.lower() else: d+=i d+=" " e.append(d) for k in e: return k

    if name == 'main': s = input() result = swap_case(s) print(result)