Kyunghoon walked at 3 kilometers (km) per hour on the way up to the mountain and then took a 2 kilometer (km) longer route down than the one he took up, walking at 4 km per hour for a total of 4 hours. How long did it take Kyunghoon to go down?
4 2 4 [OP_DIV] [OP_SUB] 1 3 [OP_DIV] 1 4 [OP_DIV] [OP_ADD] [OP_DIV] 2 [OP_ADD] 4 [OP_DIV]
var_a = 4
var_b = 2
var_c = 4
var_d = var_b / var_c
var_e = var_a - var_d
var_f = 1
var_g = 3
var_h = var_f / var_g
var_i = 1
var_j = 4
var_k = var_i / var_j
var_l = var_h + var_k
var_m = var_e / var_l
var_n = 2
var_o = var_m + var_n
var_p = 4
var_q = var_o / var_p
print(int(var_q))