Untitled

s = str(input())

so = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']

counter = []

counter2 = []

if len(s) > 0 and len(s) < 255:
    for i in s:
        if i in so:
            counter.append(i)

print("do dai str:", len(counter))

for i in counter:
    a = int(i)
    counter2.append(a)

print("tong cac so:", sum(counter2))