# test
a = 1
b = 4

def addto(x, l) :
    l.append({
        "n" : x,
        "c": []
    })
    for it in l :
        if it["n"] == 4 :
            subl = it["c"]
            subl.append(x)
            it['c'] = subl


malist = []

malist.append({ "n" : a })
print(malist)

addto(b, malist)
addto(b, malist)
print(malist)