def kaprekarNumbers(p, q):
    lst = []
    for i in range(p, q+1):
        sq = i**2
        d = len(str(i))
        r = str(sq)[-d:]
        l = str(sq)[:-d]
        if l == '': l = 0   
        if int(l) + int(r) == i:
            lst.append(i)
    if len(lst) == 0:
        print('INVALID RANGE')
    else:
        print(*lst)