Hansol is going to Busan by train. On the way, 263 passengers got off and 419 got on. When he counted the number of passengers arriving at his destination, Busan, there were 725 passengers. How many passengers were on the train at first?
725 419 [OP_SUB] 263 [OP_ADD]
var_a = 725
var_b = 419
var_c = var_a - var_b
var_d = 263
var_e = var_c + var_d
print(int(var_e))