Most positive integers may be written as a sum of a sequence of at least two consecutive positive integers. For instance, $6 = 1 + 2 + 3$, $9 = 5 + 4 = 2 + 3 + 4$ but $8$ cannot be so written. Write a program which will compute how many different ways an input number may be written as a sum of a sequence of at least two consecutive positive integers. 

The first line of input will contain the number of problem will be less than $2^{31}$ (so will fit in a 32-bit integer). 

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