print('He said his name was %s.' %'Al Ardosa')
# output: He said his name was Al Ardosa.
 
print('He said his name was %r.' %'Al Ardosa')
# output: He said his name was 'Al Ardosa'.
 
print('I once caught a fish %s.' %'this \tbig')
# output: I once caught a fish this 	big.
 
print('I once caught a fish %r.' %'this \tbig')
# output: I once caught a fish 'this \tbig'.
 
print('I wrote %s programs today.' %4.77)
# output: I wrote 4.77 programs today.
 
print('I wrote %d programs today.' %4.77)
# output: I wrote 4 programs today.

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