n = 123 f = 456.789 s1 = 'Hello, world' s2 = 'Hello, \'Adam\'' s3 = r'Hello, "Bart"'

print('n=', n, '\nf=', f, '\ns1=', '\'Hello, world\'', '\ns2=', '\'Hello, \\'Adam\\'\'', '\ns3=', 'r\'Hello, \"Bart\"\'')