programming Q MOCK TEST

Question

Consider the following program along with push and pop operations on stack which can contain atmost 

The decimal value equivalent to the binary number printed by above code is _______

Comments

ans is  57 please give me solution

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If num is even then the output will be 0 and if num is odd then 1 will be printed 8 times ..
How can 57 come?
57 has binary  representation as 111001. Each bit is the value of num at some iteration. But whenever num=0 the loop breaks! :o

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 @Manu Thakur Sir can you please help 

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what is the input to this program? if you run this program for num=4 program pushes 2 to stack, print 0 and exits.

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Yes and for odd number I guess it prints 11111111 i.e. 255 .

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this is made easy Q exactly  same ( i just copy and paste )

i m not getting answer  

i need your help in this q

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what is the input

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how they have given answer 57, no input is given for the question.