# -*- coding: utf-8 -*-

def loci(cebele):
    """V praksi tega ne bi mogli izvesti."""
    return ([ime for (ime, obiski) in cebele if obiski % 2 == 0],
            [ime for (ime, obiski) in cebele if obiski % 2 == 1])

def prestej(niz):
    stevke = 0
    crke = 0
    for znak in niz:
        if znak.isalpha():
            crke += 1
        elif znak.isdigit():
            stevke += 1
    return (stevke, crke)