#!/bin/python3

import re
import sys

input_f  = sys.argv[1]
count = 0

#list of values that can be found
lst = ['one','two','three','four','five','six','seven','eight','nine','1','2','3','4','5','6','7','8','9','0']

#list to match numbers with 
num = ['zero','one','two','three','four','five','six','seven','eight','nine']

#open file
with open(input_f) as file:
    for line in file:
        tmp = line.rstrip() #read the line
        z = []
        
        #find all matches from lst in the line
        for i in lst:
            for m in re.finditer(i,tmp):
                #make a 2d array
                z.append([m.start(),m.group(0)])
        #sort the 2d array with first column as key
        y=sorted(z,key=lambda z: z[0])
        
        d1 = y[0][1]
        try:
            d1 = num.index(d1)
        except:
            pass
        
        d2 = y[len(y)-1][1]
        try:
            d2 = num.index(d2)
        except:
            pass
        count = count + int(str(d1) + str(d2))
print(count)