do a bunch of stuff to a number by panorrrama

while(a=readline()){p=s=0
while(a!=1){a%2?a=3*a+1:a/=2;s++}while((1<<p)<s)p++
print(~s-(~s>>p<<p))}

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

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