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

def numword2int(text):
    # beim replace Ersetzung mit zahl, anfangs und endbuchstabe, da wörter teilweise überlappen
    text = text.replace("one", "o1e").replace("two", "t2o").replace("three", "t3e").replace("four", "f4r")
    text = text.replace("five", "f5e").replace("six", "s6x").replace("seven", "s7n").replace("eight", "e8t")
    text = text.replace("nine", "n9e")
    return text


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

summe = 0
for line in input_file:
    v1, v2 = "", ""
    line = numword2int(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)