After receiving water in the water tank for 2 hours and 30 hours, 180 liters (L) were received in the water tank. Find how many liters (L) of water flowed out in 1 hour.
180 2 30 60 [OP_DIV] [OP_ADD] [OP_DIV]
var_a = 180
var_b = 2
var_c = 30
var_d = 60
var_e = var_c / var_d
var_f = var_b + var_e
var_g = var_a / var_f
print(int(var_g))