Hoseok bought the same number of marbles at 80 won each with the money he could buy for several marbles at 100 won each, and he had 260 won left. How many marbles did Hoseok buy?
260 100 80 [OP_SUB] [OP_DIV]
var_a = 260
var_b = 100
var_c = 80
var_d = var_b - var_c
var_e = var_a / var_d
print(int(var_e))