3. Experiment with the following code for different strings assigned to s: S = # yourstring goes here for c in s: if c.isupper () : print (c) 4. Write a function upper that behaves as follows, i.e. it...

Answer q4

Extracted text: 3. Experiment with the following code for different strings assigned to s: S = # yourstring goes here for c in s: if c.isupper () : print (c) 4. Write a function upper that behaves as follows, i.e. it returns the substring of capitalized letters.