st = raw_input("Enter any string: ")
cs = ""
for ch in st:
asc = ord(ch)
if asc >= 65 and asc <= 90:
cs += chr(asc + 32)
elif asc >= 97 and asc <= 122:
cs += chr(asc - 32)
else:
cs += ch
print "String with inverted case:", cs
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