There are 17 more adults on the train compared to the children. At the next station, 57 adults and 18 children got on and 44 got off. How many adults were on the train initially, provided there are 502 people on the train now?
502 18 57 [OP_ADD] 44 [OP_SUB] [OP_SUB] 17 [OP_ADD] 2 [OP_DIV]
var_a = 502
var_b = 18
var_c = 57
var_d = var_b + var_c
var_e = 44
var_f = var_d - var_e
var_g = var_a - var_f
var_h = 17
var_i = var_g + var_h
var_j = 2
var_k = var_i / var_j
print(int(var_k))