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To use a parameterized manipulator, you must include iomanip It defines the following manipulators

resetiosflags (ios_base::fmtflags f)       Turn off the flags specified in f. setbase(int base)                          Set the number base to base. setfill(int ch)                            Set the fill character to ch. setiosflags(ios_base::fmtflags f)          Turn on the flags specified in f. setprecision (int p)                       Set the number of digits of precision. setw(int w)                                Set the field width to w.