There are colored carps and crucian carps in the aquarium tank. Both of them eat 3 bags of feed. To feed all these fish, the keepers prepare 60 bags of individual feed and 15 bags of 8 packets of feeds. There are 52 colored carps in the tank. Find how many crucian carps are in the tank.
15 8 [OP_MUL] 60 [OP_ADD] 3 [OP_DIV] 52 [OP_SUB]
var_a = 15
var_b = 8
var_c = var_a * var_b
var_d = 60
var_e = var_c + var_d
var_f = 3
var_g = var_e / var_f
var_h = 52
var_i = var_g - var_h
print(int(var_i))