A uniq number assocciated with every symbolic variable in sympy

Question

I am generating some symbolic sympy variables:

from sympy import symarray 
A=symarray('A' ,(7,2))
B=symarray('B' ,(4,8))
C=symarray('C' ,(3,4))

So I totally have 7*2 + 4*8 + 3*4 = 58 symbolic variables. I want each one of these variables includes a unique number ranging from 0 to 57:

print((A[3,1]).uniq_number)
print((B[4,7]).uniq_number)
print((C[2,2]).uniq_number)

How can I do this?