Что выведет код?

def f(*seqs):
    seqs = [list(S) for S in seqs]
    res = []
    while all(seqs):
        res.append(tuple(S.pop(0) for S in seqs))
    return res
s1, s2 = 'abc', '12345'
print(list(zip(s1, s2)) == f(s1, s2))