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         a = x % y
         b = (x-a) / y
         return ( a,b )     # Ò²¿ÉÒÔд×÷
return a, b
(c, d )= F1( 9, 4)        # Ò²¿ÉÒÔд×÷ c , d
= F1 ( 9, 4 )
print c ,d
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