#!/usr/bin/env python3
# -*- coding: utf-8 -*-

input_file = open("input-org", "r")

summe = 0
for line in input_file:
    v1, v2 = "", ""
    line = line.strip()
    for b in line:
        if b.isdigit() and v1 == "":
            v1 = b
        if b.isdigit() and v1 != "":
            v2 = b
    summe += int(v1+v2)

input_file.close()
print(summe)