Description

Consider equations having the following form:

a1x1³

+ a2x2

³

+ a3x3

³

+ a4x4

³

+ a5x5

³

=0

The coefficients are given integers from the interval [-50,50]. It is consider a solution a system (x1, x2, x3, x4, x5) that verifies the equation, xi∈[-50,50], xi != 0, any i∈{1,2,3,4,5}.

Determine how many solutions satisfy the given equation.

Input

The only line of input contains the 5 coefficients a1, a2, a3, a4, a5, separated by blanks.

Output

The output will contain on the first line the number of the solutions for the given equation.

37 29 41 43 47

654

Source

Romania OI 2002