If there are 3 bus routes and 2 subway routes going from Seohee's house to school, find the number of ways to go by subway.
[OP_LIST_SOL] 3 2 [OP_LIST_EOL] [OP_LIST_SOL] bus subway [OP_LIST_EOL] subway [OP_LIST_INDEX] [OP_LIST_POP] [OP_LIST_GET]
var_a = 3
var_b = 2
list_a= []
if "/" in str(var_b):
    var_b = eval(str(var_b))
list_a.append(var_b)
if "/" in str(var_a):
    var_a = eval(str(var_a))
list_a.append(var_a)
list_a.reverse()
var_c = 'bus'
var_d = 'subway'
list_b= []
if "/" in str(var_d):
    var_d = eval(str(var_d))
list_b.append(var_d)
if "/" in str(var_c):
    var_c = eval(str(var_c))
list_b.append(var_c)
list_b.reverse()
var_e = 'subway'
var_f = list_b.index(var_e)+1
var_g = list_a[var_f-1]
print(int(var_g))