Ellipse circumference by recursive

while 1:a,b=map(float,raw_input().split());s=a+b;f=3*((a-b)/s)**2;c=int(.5+3.1416*s*(1+f/(10+(4-f)**.5)));print(`c`in`0xa94ab822217a26db6d`)+c

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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