def

Elems = UnwrapElement(IN[0])
Ferst = IN[1]
classlist = list()
classlist1 = list()
num = 0

for i in range(0,len(Elems)):
    i = Elems[i]
    classlist1.append(i.Id)

def A(j):
    for i in range(0,len(Elems)):
        i = Elems[i]
        classlist.append(i.Id)
    return classlist[j]


for i in range(len(Elems)):
    i = i + 1
    if i == Ferst:
        num = i*2


OUT = (classlist1,A(Ferst),num)