There are a total of 928 baduk stones and 713 of them are colored white. Find the difference between the number of white stones and black stones.
713 928 713 [OP_SUB] [OP_SUB]
var_a = 713
var_b = 928
var_c = 713
var_d = var_b - var_c
var_e = var_a - var_d
print(int(var_e))