There are apples and pears harvested from the orchard. The sum of the number of apples and pears is 913 and the number of apples is 514. Find the difference between the number of apples and pears.
514 913 514 [OP_SUB] [OP_SUB]
var_a = 514
var_b = 913
var_c = 514
var_d = var_b - var_c
var_e = var_a - var_d
print(int(var_e))